Good luck.
Game has been modified for home use, and parts removed from the coin door with a swap out.
Other than that (without further inspection) the game looks to be in excellent condition overall for being nearly 50 years old.
This looks to be a "project+ title" for a restorer overall.

Many people might not have had the chance to play this Ted Zale "zipper flipper" title, but it is nowhere near the top of the list of all his designed games regarding features. Very open playfield design. Even the rare German export, Alligator, does not command anywhere near this value, even if fully restored. I speak from experience as I own both versions and there are differences in the design mechanics, not just cosmetics of both titles.

Ted Zale games of this nature do seem to be continuing to rise in popularity out of various amounts of game "enlightenment".
Keep flipping.

All these Bally games are built better than post 1999 Sterns. That is why many survived the EM purge in the late 1970s. Both mechanically, materials, and structurally. Gator is not nearly as complex in terms of parts and design as other "zipper flipper" games of the same period. Spare parts are even available for general requirements.