Holy crap! I saw that car and had to run out to the garage to make sure mine was still there. Yep, big pile of rust next to my Valiant, phew. Seriously, I saw that car the other day and it did get me motivated. I don't know about $50K, but it will be a nice car when finished.
The torque boxes are a big tell, I think only 383 cars came with the torque boxes. The floors are clean! I say you are well on your way to completing the puzzle. By the way I think that bezel is a non-a/c one.