Thinking of selling my SideArms PCB

I have a SideArms PCB (marquee, monitor surround (in ok shape but warping), and original manual as well) that I ripped out of a junk cabinate that ended up going to the dump. I tested it and it all seems to work with no problems (played for about 15 min before turning it off). I was wondering how much something like this would go for anymore. Thanks for the advice.