Need help getting power supply for motorized background

[mckenneyphoto]

I acquired this motorized background system after the local walmart studio closed. It did not have a power supply with it, but figured it would be easy to find. Boy was I wrong. There are no markings about the manufacturer, and Denny insists it is not theirs. Each background roller has its own motor, and a wire that connects to the box that is shown. The connector is a 15 pin connector, and obviously went to some sort of power supply box with toggle switches to move the backdrops. I figured I would try posting here to see if anyone have any ideas or leads. Hoping for the best!