You can get spider wheels from auslowe. Auslowe also does square mack tanks but they are more for the f series or secondary fuel tanks for old r series as australian trucks need more fuel tanks. The mirror arms would be easy enough to scratch build. The tanks would be a bit harder. Cheers.
Ben
These are coming to Australia too in turbo 4 and V8 only. Holden (GM) should have brought the Camaro to Australia as well. They're going to sell like hot cakes.
Ben