I had the 40 sized Ultimate from Airborne Models and it was an excellent sport plane and a blast to fly (I had an OS .50sx). It realy was a difficult plane to 3D with in that size but it is one of my favorite planes. I have the Carl Goldberg 60.5 inch Ultimate that will have a Syssa 30cc and I have a 50cc Aero Works Ultimate that I will get a DA-60 for. The larger Ultimates 3D pretty well. For .40 sized 3D, get a profile plane.

Use a 12.25x3.75 APC prop for that engine for your best chance at any 3D.