If you buy stuff from captains please know they hide a lot of issues or disguise them to make machines seem like they are in better shape then they actually are. If you are no stranger to restoring games or doing in depth repairs I'm sure you will be fine, but I've bought several machines that "looked" much better from the certain angles they took pictures from only to be pretty beat upon arrival.
I once bought a dynamo air hockey table, which was advertised as working great very clean, during the live stream they were playing it. Upon arrival it wouldn't boot up at all, looked back at the stream and realized it was never running and the employees were just batting around a puck without scoring it to make it seem like it was playing. I have other stories like this one, but this one chapped my ass real bad.