I have been trying to trade my Apollo 13 and DM towards a Metallica for a while now, but have not had any luck. I have had a couple of people ask about buying the Apollo 13, and I really have no idea what to ask. It was shopped about a month ago, and I have only played it a few times since then. Here are a few of the things that were done to it:
New lockdown bar
playfield torn down and everything cleaned
new plastics (I think there is one little one that I didn't have a new one for that is cracked)
Pinballbulbs LED kit installed
LED OCD board installed
The only thing that I can think of that isn't great on it is the rocket. It was poorly repainted at some point in its life. I have been trying to find a replacement, but haven't been successful so far. The launch mechanism works fine though.