Congrats & glad to be your source of inspiration.
I picked mine up from a Pinsider shortly after volunteering for Arcade Expo 2.0 and getting their Skyrocket running again. Aha! I need this one!
It wasn't for sale and was 1000 miles away but I figured why not reach out and see if he was tired of it? Turns out he was. $1100 plus shipping and it was mine. Then another $600 for clear coat and maybe $125 in various parts including fully replacing all of the lamp sockets (in the head too... woo... those Ballys...).
Totally worth it. Rare, fun, pretty, and has an interesting history. Also multiplayer fun in a single-player form factor. Never sell it!