Who has the largest Offset? yea its for a bus

[kra710]

I have a 77 bus, I know most people are beetle owners, but I know some are gearheads who know their busses. I need to know who has the largest offset, so itll be easier for modification for rim fitment. If porches or audi's are closer than Mercedes, I may opt to them. Should I lower the bus first (itll be adjustable). Whats teh widest you would use, 7" or more or 6.5" eww. And I think 17" will work without tubbing the wheel wells. Thanks for any advise, Ive been looking everywhere.