Big Injun, Brave or Indian are all good games from a glass artwork and game design. PF artwork IMHO blows, and cabinet is kinda blow too.

TA indeed is absolutely boring, and the artwork IMHO is rather uninteresting as well. Was popular, and big numbers made, but not a keeper when it compares to others of the same PF layout and differing ruleset.

Spin Jet to me is another good game to consider if you are looking for asymmetrically designed games with loads of fun on the PF to hit. Also look at the retheme/mod done to one a few years back to become a one-off Jetsons game (not the one from Spooky), fun and if you are into DIY modding go for it and duplicate the work done by the modder. This one is a huge project, but worth the effort to get it Jetson'ed.

Have fun!

For a rare BG yes, for the game no. Its basic stuff on EMs/GTB.

Make sure to get with Peter of Pinball Rebel with all paperwork you have, show him
either in photos or send scans to him. He'll do complete reproduction of all the paper, which
if not already in his collection/offerings, will be a big help to others down the road.
Nice find, and good luck with the BG find, they are out there but rare.