There are a few Toyota Truck specialty dismantles such as Toy Connection in the bay area of California (http://www.toyconnection4x4.com) and also Jim's Used Parts out of Denver, CO (http://www.jimsgotparts.com/Yoda_Jims/Yard.html)

You might also want to try this classified ad from one of our board members from Missouri, who seems to have almost anything you'd need: http://board.marlincrawler.com/index.php?topic=39620

You could also try finding yards with things you need through http://www.car-parts.com but it's becoming increasingly difficult to find older model parts through this route.

BigMike