Brian
You might want to put that Ultimate bipe a few pegs further down on your "airplanes to do" list. It's a good plane but not a second plane.
If your OK with ARF's try the Lazy Tigre 51. Your OS 25 will be a perfect match. By using the right prop you can have a tiger or a *****cat. I fly 1/4 scale but go back to the Lazy Tiger for fun. Use a 9/4 prop to start and as you get more confident work up to a 9/6 or 9/7