couple questions on wheels/tires for a 03 sedan...

max as far as STX autoX rules are 18x9 and 265 tire width.

i know a 265/35/18 is a little short, i think little under 4% than a 215/55/17, but I can live that.

questions:

1. is there an offset that will allow me to run a 18x9 265/35/18 in FRONT? (assume car will be on 350z springs)

2. if no fit in #1, how about a 245/40/18 on a 8.5? who makes both a 18x8.5 and a 18x9??? seems most that have an 8.5 jump to 9.5 and not 9...

3. what's about the least offset for the REAR that i can run 18x9 265/35/18 and not rub without body work? 38mm??