I bought 2 "non-working" units last summer. Paid $100 for the one that was on location and $50 for the one that was in storage. The one that was on location was just a jammed coin mech and worked 100% after fixing that. The one in storage took about $120 in parts (minor parts at that) to get operating 100%. Parts for skeeball machines can be scarce and expensive. I ended up trading the one that was in storage for a coin op dart machine (priced at $300). A set of 9 original balls in good shape will run about $100-$150 off ebay, NOS even more. Your best bet for switches is arcadeshop.de, even after currency conversion and overseas shipping their prices are lower than anyone in the states. If the lane and score ring cork is dirty, TaskiProfi works wonders for cleaning it up. I'd be a little weary buying an "untested" machine for that much, but I'm cheap... I'd definitely try to see if it powers up before making an offer. Power supplies and CPUs tend to be a little pricy (model H and S lanes).