RE: twin engine choices
My Bro-in-law had the same plane and outfitted it with HiMaxx 2816-1220 outrunners, 8X6 3 bladed counter rotating props on a single 3s Lipo 3000 to 4000mah I don't remember exactly & TB 36 ESCs. She flew very well and had plenty of power well over scale flying. Not unlimited vert. On about her 5th flight one of the ESCs malfunctioned, and caught fire in flight. She crashed and burned, literally!!