How did I not see this thread until now! Your swap is truly inspiring, and I look forward to watching your progress on it.
You mentioned that the back wasn't dimpled, was the front marked? On my new South park playfield some post/screw holes were marked, and others were not. I can only imagine how much work it would take if none of the holes were marked.
Your topside is looking better than new! I'm not striving for that high of quality with my swap, but if it turns out even half as nice as yours, I will be quite pleased.
Also, my sincerest condolences about your brother. I can't imagine what that must feel like. I wish you and your family the best during a time like this.

Congrats on getting the playfield back into the cabinet! That’s gotta feel like a big milestone to hit in the swap process. The topside is looking like a million bucks. Nicely done!

Maybe this is a silly question, or maybe you already mentioned, but what does that board do?