Just my .02
While it is a shame to part out that truck, I don't see much difference in parting it out than to restore it and hide it in a garage just for the, "look what I got", factor.
My neighbor had a extremely nice 72 shortbed 4x4 a few years back. I only seen it out of the garage about 3 times. Talk about a waste...
If ya can't drive it it ain't worth anything IMHO.
On a side note, Who can afford a $5-6K truck to part out anyway???