Man that cabinet & internals are in amazing shape, Very cool!
You might like this YouTube channel I stumbled upon a few months ago called Johns Arcade, he restores classic arcade games like this and documents the process pretty thoroughly, Most the time he literally tears them down 100% and rebuilds them to original specs, instead of just swapping out the monitor with a newer one he'll rebuild the original CRT etc.
His various restores are in the channel Playlists.
https://www.youtube.com/user/blkdog7