Thanks for the efforts Bardi!
Here's details on the Evo rotor: I think the offset it too much (and too thick and possibly too large diameter: )
I think what we need is something about 310-312mm diam, 40mm offset, 25mm thick.
The S2000 rotor + stock knuckle (redrilled) satisfies most of that except for outer rotor diameter (10mm shy) but drilling knuckles is kludgy. Would be easier to install M12x1.25 timeserts into Brembo calipers and use stock bolts.
The closest thing I found at the above site after perusing a lot of rotors was something for a chevy cobalt SS (with brembos), it had the wrong bolt pattern I think but the other dimensions were close(r).
as much as I hate the idea the TL knuckle plus other wheels might be the easiest way. That, or TSX knuckle drilled out for larger bolts + S2000 rotor + other wheels.
Personally I don't care much for the OEM wheels anyway so was planning on replacing with something lighter like Koseis or similar (presuming they'd fit with these calipers).
As insane as it sounds I was thinking of keeping two sets of knuckles with brakes and everything, and swapping the whole knee seasonally. I just bought a nice set of 16" alloys and blizzaks and it would chap my ass if I had to get rid of those since they wouldn't fit the brembos. So, my idea was get TL knuckles, with brembos and 17"s that fit and run those in the summer, then swap on stock knuckles and brakes and 16"s in the winter. Yeah, I said it was insane... (though there are dry-break fittings made that can be used for hydraulic brake lines, so calipers could be swapped without having to bleed them each time... of course still would need to do the axle nut, tie rod (and maybe alignment, which I can do myself), upper and lower balljoint nuts, etc....)
BTW, has anyone weighed the stock caliper? I think the brembos might be lighter, even though they are huge.