This build would make a fun project. Go for it!
That "hit" to the drive-side bottom bracket shell looks troublesome to me.
Especially since the seller did not provide a proper photo.
One must wonder why it got sand or bead blasted, only to let the surface rust return.
At least take a few minutes to hit it with some rattle can primer!
So it will require another bead blast. (It probably got sand-blasted, judging by some metal removal.)