Ummm forgive me if I'm wrong, but isn't the main deciding factor here the offset?
Dude, do you know what offset they are?
Anyway, I'm sure you can get them on with some flaring or rolling... perhaps stretched rubber.
I have a mate who's got 18x10's all around on his GTS-T... with 265s on the rear... with no modification.. of course, this is due to the offset (not sure what it is).
I've got 17x9 (rubber is 235 all around) on my s13, with an offset of +22 they stick out a fair bit but some flaring will soon sort that out.