I've been doing a little work on my 72K5, Its also been 2-3 months since I've posted. I was coming back from a game 2 weeks ago when I passed a 72 for sale. 350/350 4wd, 4" lift. Good straight body, very little rust.
It has a 69-70 grill and side view mirrors, but that should be no problem to fix. No rear bumper, but I can pull one of my one of my other K5s. The front seats are from a mustang
and it has no rear seat, but I have a set of both that I need to have recovered.
Next summer I'll have it ready to paint (Orange)
It runs like a hoss, and I'm pretty happy so far.