Hi,
I did notice your "defunct", but I didn't know whether you meant A.S.S. or Jim.
I'm sorry to hear that he departed owing you money. However, even if he were alive, getting money out of Jim would have been a challenge.
The "Prodigy" Cobra was/is metallic grey with black stripes. However, I do remember the yellow car with white stripes, although I don't recall who's it was. I recall that it had a Ford 460 in it. Around the same time, he was also building a metallic burgundy car that had a Jerico gearbox.
Paul