im under the same dilemma, 16's with the right offset should work. people normally used a stock z32 rotor, drilled to 4x114. rotor diameter was turned down a bit. dont know the exact numbers but there's a few here running these calipers. subscribing
btw, did you rebuild your rotor? you getting it powdercoated?
btw, did you rebuild your rotor? you getting it powdercoated?