Unfortunately he dropped a can of worms in your lap, by asking you to deal with those eBay purchased HT750s. We provide our Resellers both sales and marketing support and work hand in hand with Resellers to grow our collective businesses.
They likely software to program those radios, and will likely charge a fee to accomplish the programming, get the license, etc. Vertex Standard VX-231 Programming Software (CE99) Download Wireless Solutions is a wholesale, Stocking Distributor of Motorola Solutions Two-Way Radios, Body-Worn Cameras and Accessories.