OP you can get RPF1s in an almost perfect offset, i have a set at home. I believe they are +15 9.5 front 10.5 rear. Don't have any pics yet, they were only on the car briefly after i wrecked my G to drive them home. Didn't have any issues with them clearing anything. As soon as i put rubber back on them they will be on the Z.
https://www.amazon.com/Enkei-RPF1-Si.../dp/B002HLRDBO