I have s similiar problem, looking for wheels that clears the big TTRS calipers and discs... 370mm...
So far I have found that these wheels fit(
OZ Ultraleggera 18x8 ET45
Audi rotors 19" TTRS wheels
VWR 18x8"
I have testfitted some BBS ch-r 19x8.5" ET48 with 3mm spacers. I found BBS ch reps in 19x8.5" ET45 that I will testfit tomorrow!
VMR have some modells that also should work!