Since I am designing a new firing system, I am selling the system that I made last year. It is a 12 cue remote system made from the "MADEINCHINA" EBay board. The system is fully functional and comes with batteries and a couple wires. The wires are only a couple feet long but are fine for testing and will give you an idea on how to make more. I got rid of all the other wires last year, sold them for the copper.
Shoot me a pm or an email and I will email you some pics and a price. I will say that I am selling this for about the same price as the ones on eBay and I am including a battery that normally costs $20.
I am also willing to part with my very first 20 cue system. it isn't wireless but it still works and would be a great starter system. Here is a pic.