Another quick update:

Went by the shop today to check up on things. Car is all sanded and prepped almost now. Primer tonight (the painter is staying late) and then final prep and paint on Friday/Saturday. Since the last update, the quarter panels are all finished up now. Can't even tell that they aren't original unless you look from inside. Both sides of the car are now sanded. They were currently working on the roof and the fenders when I came by. The engine bay is also ready for paint.