Luke

Isn't it the entire point of the car?

You should try https://www.ft86motorsports.com/wheelitfit/
It's perfect for checking fitment and gives a very accurate representation. 
With that offset I'd say you'd be fine. 
Expect a it more noise vibration and harshness with that setup but many people run similar on here without a problem. 
Hope this helps. 

Just run it totally stock it will be absolutely fine. I tracked mine a fair bit before I changed anything. Don't change anything until you decide what you need to do. Always a good idea to run it stock and then change as you go along and where necessary. Cheaper that way too.  

Very nice mix of multiple skills they both have. It reminds of a production company that made this many years ago that I still watch from time to time. 
Nothing like a good montage and I bet those radicals are great fun on the track. https://youtu.be/J4xSAtrdJcQ

You have my attention. I thought your knowledge of gm v8's was a bit detailed. I look forward to hearing progress, are you going to have to smash the transmission tunnel in and modify the steering rack to get it to fit without it poking out the bonnet? I've just recently discovered who pure automotive are after looking up k24 swaps. 

Okay that's a definitely for me now. 

Okay that's a definitely for me now. 

Put me in your maybe pile please. 

This was my discs after 15 minutes on Bedford. Assuming this is quite normal? 

I'm enjoying the journey your documenting for us all to ponder. I expect heavy detail on trying to smuggle a body kit back across the English channel. Followed by hours of sticky tape and laser levels to line up the arches correctly. What are you plans for cutting the wheel arches out? Will you hide the rivets or leave them exposed? 

Maybe we could take a trip to Brooklands or Denbies vineyard in Surrey perhaps? 

Brooklands - and maybe park next to Concorde!!

I'm sure you both think you're winning the argument and that the other person is a moron. In reality, you look equally foolish.
Go outside for a drive, it's sunny.

Because you seem to be talking mostly complete shite and coming across as one of those people who think that only their way is correct and everyone else is an idiot. Yet you don't actually seem to have a great deal of evidence or experience on the 86 platform to support what you are saying. 
You also put kisses at the end of posts, which for an old bloke is feckin weird 🤷‍♂️
 

8:28 is a good lap but isnt that fast for a car of the spec. But its not down the brakes iv been quicker on STOCK CALLIPERS no problem, it the fleshy bit between the steering wheel and the seat the only thing slowing it down there.  You see that STOCK CALLIPERS aren't the limiting factor, on a track that isnt that demanding on brakes.

Not wound up due owning oem brakes, but due you labeling everybody on stock brakes as not knowing how to drive, to rise selfworth by belittling others.

Maybe we could take a trip to Brooklands or Denbies vineyard in Surrey perhaps? 

Isn't it great how we can all have a heated debate on the forum and still come out friends in the end. 
My analysis of everyone's input is:
Fit a bbk with pretty much any reputable pad and disc combo will work. 
Stick with oem calipers and put a good disc and pad combo in for track use, you'll have no problems for most drivers. However eventually after extended stints on track the heat through the brakes will damage the caliper seal and cause a fluid leak. 
You could of course rebuild this you'll be good to go again for a limited time before having to repair again. 
That life expectancy is entirely based on driving habits and spirited driving mileage.

Isn't it great how we can all have a heated debate on the forum and still come out friends in the end. 
My analysis of everyone's input is:
Fit a bbk with pretty much any reputable pad and disc combo will work. 
Stick with oem calipers and put a good disc and pad combo in for track use, you'll have no problems for most drivers. However eventually after extended stints on track the heat through the brakes will damage the caliper seal and cause a fluid leak. 
You could of course rebuild this you'll be good to go again for a limited time before having to repair again. 
That life expectancy is entirely based on driving habits and spirited driving mileage.

That's pretty impressive performance from this setup. 30mins sessions on track is quite intense on the standard disc and caliper setup. I've seen your lap times and YouTube evidence to prove your not cruising round the circuit as well. Great to hear it works well from cold also. 

15+ track days and 3 sets of pads actually make me think those disc have done well to survive so much abuse. I've been in your car and there is reason you added the harnesses.

Get coilovers don't waste your time with springs.

You'll have to share your trackday videos so we can all learn then

To echo @Lauren's comment, I've had my Reyland AP kit on for two and a half years now and probably done a about 10 track days since and about 25k road miles, without any concerning issues (I've had some debris scratch the disc's and hats & boiled brake fluid - but both will happen with any brake (OEM or BBK) setup). I'm still on my original AP disc's, which have lasted incredibly well, I'm sure if I ran a  more aggressive pad compound they'd get used up alot quicker. I also changed my brake pads around 9 months ago, purely to try a slightly different compound to the previous pads, Ferrodo's DS2500 as provided with the kit. The Ferrodo's still have a good amount of meat left on them and I'll be switching back to them in a couple of weeks for several upcoming track days. 
The Reyland big brake kit has been my joint best mod to the car, with the exhaust manifold being the other.

I've had my AP four pots on with Reyland grooved discs and DS2500 pads on for over a year and a half now. Done nearly 30K miles on them, about five or six track days, about ten sprints. The pads still have a good amount of meat on them and the discs look hardly worn. Amazing really. Feels like they'll last forever, but reckon I'll get another 10K miles out of them pretty easily. I should add though that my pads tend to last a lot longer than average as I am pretty easy on the brakes. Obviously on track I do use them to their full capacity, especially so on sprints where every hundredth of a second counts, so there's no early braking at all. On the road I brake as little as possible, which probably helps me get great mileage out of them. On stock pads and discs I would get around 37K miles out of them.