I've built both of these kits and they turned out to be little gems. With lots of detail, complete engines, stainless steel PE parts, and very good decals; they are far better than the Starter, Provence Moulage, and most other French 1/43 kits.
In addition, I was lucky enough to take a silver medal for the Cobra a few years ago. I recently finished the Corvette and will be showing it in competitions Nov 15 and 22.
NICHOLMA - I'm not sure about E-Bay, but I see them for sale every so often from vendors at model shows/contests for about $20, which is really a bargain as compared to most other 1/43 kits. By the way, these were both made in Germany. They never should have discontinued that line after only two kits, but I guess that there wasn't a big enough market for this scale at the time.
Pete