It’s hard to tell from the pics, but the finish on the headstock looks a bit odd. Perhaps it’s been refinished. I don’t have an early 70’s D, so that may be normal. Looks like a little crack near the pickguard. The neck work (around the joint) looks a bit unrefined. I bring up these items not to dissuade you, but to give you suggestions of bartering ammo if needed. Long and short of it, I’d play it and if the tone, playability and intonation are good it looks like a great find. Like you said, if the intonation and/or neck angle need attention, it will take some more benjamins to get it right.
I suggest taking a set of strings, some diagonal cutters (dikes), a string winder and a tuner in case the strings are so dead you can’t tell what it sounds like. I have put new strings on guitars that I didn’t buy, and those were some of the best investments I have made. I might even take my all my measuring stuff to check the neck angle and fret wear and such… yep, I’d look like a dweeb, but I guess I am. I might as well embrace it.
Let us know how it goes!
