Yeah, I was gonna mention LMC. I haven't bought that much truck stuff from them, but I've gotten loads of stuff through 'Victoria British,' their original company over the years, for the british sports cars I've restored. Some of their stuff is not 100% original in appearance for the sports cars or the trucks either, for that matter, but if you're not doing a full concours restoration, it may fit the bill quite nicely. I've used their carpet kits, upholstery, convertible tops, and lots of trim, sheet metal & mechanical items of theirs with only minimal problems.
They've also got a nice comprehensive on-line catalog as well as a paper one they'll be glad to send 'ya for the mens room.
WWW.LMCTRUCK.COM I believe is their website.