If you ever want to know how they sit just remember Escort Cosworth wheels are similar fitment - 8x16 ET25...I have always found the fronts stick out a little too far or the rears need to come out slightly (5-10mm)...but most people who run them tend to find they need to trim the arches should they go anything more than 25mm or so

My Orion runs stock RST S1 wheels (around ET35 I think), but are spaced out 20mm per side on the rear and 16mm on the fronts...its sitting low on Gaz coilovers all round and when though the arches are rolled and the fronts are slightly flared, I get the front to ever so slightly catch on full lock, and the rears rub once in a blue moon...I am on 195/40 tires

I had to flare the arches when I ran my Azev A's which were 7.5x16s all round with ET30 fronts and ET14 rears which funnily enough never caught on the rear lol...mind you the tires were slightly stretched on those

The new setup will be 8x16's all round with ET12 on the front and ET7 on the rear LOL