'71 Jimmy worth buying?

[MLPhere]

I found 71 Jimmy for sale & hoped to find original seats & decent truck. Found relatively rust free - door bottoms good - no holes in pan - a few pinholes in thresholds - auto & a/c - doors open & close well - grille straight, but pitted. Bad news was original interior gone - undercarriage shows signs of 4 wheeling - tailgate bent. No engine, but that's OK w/me. They are asking $4000 - any suggestions? Glovebox say's Cheyenne interior - did Jimmy's have Cheyenne?
Thanks Mike