Once disassembled, it only takes minor carpentry skills and a few tools to replicate it from a new piece of plywood. It looks like yours is made of the cheap fiber board that many were made of. The one on my '84 version was completely broken at the hinge and had to be replaced. The only really hard part is prying out the old staples. And be careful with the plastic light shields on the front. They make new ones but they are pricey. Once tou have it stripped just match it to a piece of new and trace out all the holes and edges. With a drill, a cheap jigsaw and a few hours you can make a duplicate piece decently enough. Spray it white, remount all the hardware and voila!
Shawn