I answered a local ad that had two games, a pin and a shuffle bowler.
The fella got them in a trade for some painting work he did. He put them in a (Canadian) unheated no power old garage with no plan and never turned them on once. Two years later he needed some space. Put up ad 400 each. I showed up with large mini van, after a quick look inside ( nothin obvious missing ) some haggling, (I'll take them now, may never work, full of black walnuts, corn and moose poop), got them for 500 for the pair.
100 bucks in parts, a few hours of basic overhaul, a bit of research and voila I now have not a beautiful but fully functioning Bally Hi-Lo Aces and an almost fully functioning Williams Pinnacle Shuffle bowler in my unheated garage getting the heck played out of them. With lots of offers to buy.
For me seeing them come back to life, that's my satisfaction. Like a old classic car, Make it go someone will take it and cover your costs. Restore to new you better love it cause you'll never get your money back out of it.
That's where old EM games come from.

I like fixing junk, and these old basket case EM's...best junk ever! Just the fact that they still work after 50 years of hard labour, abuse and neglect is amazing. I say dive in and get dirty, everything you need to know is here in pinside or on the internet. If its a basket case, get another and use it for parts. Buy a old pin and just brag about it, who cares if you have to turn the score motor by hand, you are in the game! And best of all,
They don't talk back, they are beautiful and when you push their buttons they enjoy it... hmmm sorry off topic

btw I have a grand prix....its really got a lot of parts...scary parts....I'll try later parts..