The hanger at the diff is almost ready i added some cute details more pics to come ... (after finishing)
The wheels are BBS LeMans 8.5 x 18 (LM124) front and 10x18 (LM126) back. Both ET (offet) 30 mm. Bolt circle is 5 x 120 mm come like that for BMW. I dont use adapters, because you can live well with the 0,6 mm difference between 120 mm (BMW) and 120,6 mm (4.75" Chevy) .. I just added a center ring for positioning.
Tires are 235/40 front and 265/35 back.
Basically you can use
any 5 bolt BMW rim on a Chevy Camaro, Nova, etc. when you take car of offset (30 mm is from 3 series I believe). But these are especially light and strong so it was worth the price.
They are available up to 11 x 19 ET 25 and even in 5 x 114.3 (4.5")
e.g.
http://www.vividracing.com/catalog/b...5762_5768.html