Something around the 45-50mm range for Supra's is popping up in the back of my mind. Regardless you need to know the offset anyway.
Nick - 19x7.5-8.5 will be fine, a member in NZ who's name is 'Oblivion' has 19x8.5" 35mm on his car with 225/35/19 and with rolled rear arches isn't having any problems at all.
Thanks Brad,
Yeah "DARKVR4" James on here is running 19x9" on his and has not had an issue. We are assuming his offset is 35.
How bad will it ruin the centre diffs if stagered wheels are put on?