Rather than mounting 150hp to the nose of a trainer you might consider a different plane.
I highly agree with that statement. I also highly agree with everyone who's suggested the OS 46 FX. I have one on my Sudokhoi and it is ballistic!
Stiks (any of them),
Right on again Jim. Sticks (Ultra sticks, Super sticks and Big sticks are all variants of the original Ugly sticks) make fantastic 2nd airplanes. Terrific ground handling, super slow landing speeds and all but 3D aerobatic ability. I think you would have a ball with a 46 FX on a .40 size Stick.