09th August 2012:
The wheels provided with the car are most probable of the German Ford Eifel. So we bought 5 wheels at ebay: One in a as new conditions, already painted. Two were in a good conditions, already blasted and primed, one was painted, but bad, and one was very rusty. We blasted the two latter ones, primed the wheels with brantho Kurrox nitrofest, sanded the wheels and then painted with acryl enamel. This was not succesful, as my lack of experience led to heavy runs on all wheels (no pictures). Unfortunately we have to start from scratch!
May 3rd 2014: Tires and whhels mounted on frame, see below.