I actually have no idea what the OEM size is, lolol. If it is, then 17s probably wouldn't be a bad choice.
It's not the fit thing for me, Sin. I've just always been a fan of smaller wheels. Comes from being a West Coaster, I suppose. I'd put the 17 or 16 wheel on the car and lower it to get rid of wheel gap.
This hits it, right there. I like 'em small, you like 'em big. Later, QD.