I owned such a Marmon too when I was much younger. 5 years ago I sold them all because my interest changed. I never knew, that the original truck wasn't only a Peterbilt with other labels. I thought, it was right like the model kit was. Good. Today with all the internet and good forums it's easier to see mistakes...
I'd like to comment on this some words. Not especially to you, niteowl, in general.
I have good connections to the guy(s) who are responsible for PR and internetstuff (websites, forums). Everywhere in model communities there is the discussion about this "share your dreams" site. You can be sure, that every single wish goes through a kind of poll. They check all the suggestions concerning whether it's possible to make, to get the license and how much it will cost to produce the kit. In the most cases it fails because of the license. The main budget in the developing are the license costs and (unbelievable, but true) the artist, who designs the boxes / covers. I couldn't believe it too. This is the main problems for new kits.