Canadian Guy,
The front axle from a Faller car will surely fit in a hummer. Unfortunately, getting the rest of the stuff in there is very difficult. I'm not saying it can't be done, just that it would be a challege.
arch2b,
Aww, shucks
Yes, I have purchased from him before on eBay. In fact that is where my orange unimog came from.
It is a good idea to buy a couple for the reason you mentioned.
One of the things that I did not like about that guy was that one of the trucks I bought from him had peices already glued on the truck, and very poorly too! I just chalked it up as eBay "Buyer Beware" and used it for parts.
If you order something from him, make sure you ask if it is NIB!
-Todd