thanks Deuce
it was really hard to find a wheels in old style design, i tried to fit a Cragar Super Spoke wheels, but it cannot be done because of the construction of rear axle. Maybe if i will find a rear axle from commo/a for 5 bolts wheels...
are you sure, that 3.0 24v (c30se) is the Ecotec technology? i dont think so...
btw, i was a lucky man, cause I have bought a whole Opel Senator with c30se from the guy, who really didnt knew, what's under the hood

He told me, that the car cannot start because of the broken engine. So i paid for whole car about 200€. The problem was blocked electronic control unit by broken water temperature sensor (10€)