You might have a good chance with Corgi. They've already done some special editions.
Take a look: George Turner Models |
Those may be on Tricatus' Corgi site, but they aren't Corgi models. George Turner Models are a whole different ball game (price and quality wise) from pretty much anything in the diecast market. If you follow the link and click on "George Turner Models Official Website" you'll see what I mean. Super high end, super high quality.