Enjoying this thread! I have the Grand Tour in your last photo of the different heads. Someone painted all of the colors blue... will have to repaint eventually. Like yours, my playfield is in really nice shape. Backglass, not so much.
One really annoying thing about Ballys from this generation is the shooter housing. Just plain metal-on-metal, no sleeves, no bushings. Yech. Was thinking of replacing it with a later-edition (but similar-looking) shooter.