I'll probably do the plexiglass. The guy before me did a lot of work to it and put tons of new stuff in, also got a tune up. He repacked bearings, new springs, new front and rear diffs, new ball joints. and tons more. About the bed I only plan to have the truck for a year or 2 than trade up for a nicer one. I'm not putting any money into it as I don't see the bed rusting in that short of time. Thanks