yeah, rear is fine. front needs a little more out... 15mm to 20mm? then roll the lip on the guards and drop it by just under an inch, should leave minimal gap, you don't have to run stretch tyres, shouldn't have scrapage on lock or over bumps... but it'll look tough. probably will get defected for height though cos the bottom lip of the front spoiler will drop under 10cm.
alternatively if you don't give a fuck, then do this:
18x9.5+15 front
18x10+20 rear
near perfect fitment for R32 narrowbodies. maximum wheel width, no fouling on suspension, and with a roll, no scraping.