IIRC, Jim Carter has some paint sheets available for something like $.15 at the website.
They also sell paint. He can provide just about any factory color you'd like. There is a list in the research catalog. It's in PDF format, and I wouldn't recommend downloading it unless you've got broadband. It's 28 MB.
Take a peek at
their website . They may have a listing of the colors in their online store.
