I haven't installed a motor on a trike but I have some ideas! I live just east of Dallas. I've been wanting to start on a trike myself. I had a idea for a chopper style trike a couple of years ago. I'm not putting a motor on mine but I've been tossing around some frame ideas. Did you have any thoughts on how you want to install the motor? Put a hub style motor in one of the wheels? Put a motor inline with the cranks some where in the frame?