I bet once you clean it up, it looks a whole lot better!
I am so against parting out old cars/trucks that I see red so you know the way im going to vote already.
Here in Pa, we don't know what "a little rust" is so consider yourself lucky. If you lived here, you'd sell your blood for a builder like that! LOL
Do whatever you have to to keep this truck alive. If your not interested, sell it to someone that will. I would never part out an old truck in that condition. (or any car/truck that is buildable)
People have to start realizing that one day these trucks won't be so plentiful. I always use the '57 Chevy's as an example. Remember the day when they were everywhere? Now try to find one! (and be able to afford it)
The parts your looking for can easily be found at swap meets or junkyards. It's too late for them but up to you on this one.
I know you'll do the right thing.
------------------
63 Impala*66 Chevelle SS*69 Chevelle*69 C10 Stepside*71 Cheyenne 20*72 Chevelle
Parts for sale:
http://www.angelfire.com/trek/mr409/items4sale.html