I'm not aware of anything on those boards that can't be fixed/replaced (unlike the Gottlieb System 1 spider chips). Transistors and coils are readily available for that game, it's just a matter of tracking the issue(s) down. I think there is probably less help available out there because the production numbers were so low that not as many people have them (vs. Williams, Bally and Gottlieb) therefore troubleshooting the game will likely fall on you to pour over the schematics and test/debug it yourself (although I'm sure pinsiders will help out as much as they can). There are some pinball techs who won't even touch an Atari pin (probably because it's not worth their time), but there is nothing magical about them, it's just a different system. If you feel comfortable reading schematics and troubleshooting a pin, and the price is right, I'd say pull the trigger and pick it up.