The 1/43s have been coming up a lot on ebay. Unfortunately, the wheels are wrong. And most of the pics of those models depict poor quality assembly and paint. Some ebay listers have shown decent quality. There are several with poor quality.
Caveat emptor. If you're not picky about these, and just want a Marlboro car (seeing as how the minichamps and BBR models tend to go for a higher sum) it might not to bad. Unfortunately, I am very picky about the shape of the wheels.
The larger 1/12s look to be the same as what Thorst had offered... but at a much much higher price. Those that wanted one and didn't jump on Thorsts offerings... good luck.