I have this engine so I can suggest a few things. Do you have any preference such as only scale or can it be a fun fly/profile? I have a Powerline Edge 540 with that engine and it flies very well. The weight is the only complaint I have but it flies both precision and 3D extremely well. Mine came in at 6 lbs 1.5 ounces but a few ounces could be shaved off using mini servos. Mine are all standard size high torque. The Accel Katana profile is very light with this engine (4.5 pounds) but I really don't like profiles right now, that could change once I fly one. See Ohio model planes for more good quality profile ARF's. The Cermark Ultimate Bipe would be light with that engine, around 5.5 pounds.