PE2s are great tyres but it works out expensive using them on track. But I reckon its worth it. I purchased some old Phase 1 Renault 19 16v wheels and some Yokohama A048Rs for track, but never used them as I was happy on road tyres.
The offset on the 182 is 45. Compared to the 172 it uses different wishbones, hub carriers etc, unlike the 172 Cup where they just used a different offset on the wheel to make the track a little wider.