I have already designed and built a working prototype that I am currently using, and would be able to produce and turn a decent profit for less that $500 per unit. It transmits/receives wireless, the +AES/-AES, +RX/-RX, and +TX/-TX while using Variax's (I have the 700 model) on board battery for power. I've also added a small circuit to make available signals from each individual string for use with a 13-pin midi setup (works with my GR-20) I have just filed a provisional patent for it, but the idea is for sale Line 6...so you say you're hiring? hehe ;)
