I have been watching your progress with the AFM and the repair you did (pretty good work btw). When I heard the word "overlay" I got worried as I do not hear good things about those results. This was probably a difficult route to go for a playfield swap but I think you will be very happy with that machine with a new playfield. The end result will be awesome and it looks like you are working quickly! You already had the topside torn down so you were well on your way!
Good luck getting to the finish line!