This is a control panel I made a few years ago for a jukebox/arcade cabinet. It uses a Happ 3" blue trackball and a serial Optipac and has two blue buttons, one on each side of the trackball. I can unmount all the hardware and send it. Or I can send it mounted to the wood control panel. I've had this sitting in a box for a few years because I've moved several times and I have no plans for it. These days a jukebox makes no sense now that I have a Linktheater and other wireless AV hardware.
Email for pics, I have them somewhere.
$80 takes it all without the control panel. $80 + shipping costs with the control panel.