I know you already have it and it will probably work fine. I just play the odds. If it were mine, I would put the used radio in the Air Scout for your friend to fly and pick up a new radio for you. But again, that is just me. The Skylark is going to be bigger, faster and potentially more dangerous. I'd want the best chance of success with it.
Makes alot of sense Bruce - will do. I hope servos are basically the same size as I already have the servo tray cut out and sized for the Skylark fuselage