This 1981 Rowe is a fresh pull from a warehouse. It was coming up with an error because it had a sensor bulb out, but it came up fine after I replaced the bulb.
Only has two of the three hopper slots filled. Either buy another hopper or change the dip switch settings to not use the third one. Or ignore it and it will complain the first few times it tries to use the 3rd hopper and then stop trying to use it until it is powered off again.
This model is easily modified to dispense 4 coins/tokens by just pushing the reject button. There are threads about that over on the klov forums.
$250
Some trades considered.