My first trainer was the Eagle 63- the predecessor to the Eagle 2. Much later I built an Eagle 2 for a knock-around plane and to give visitors a trial flight. IMHO a .65 4-stroke would be way too much for it, plus four-strokes are more complicated to work with, and the broken mount is a bad thing too.

If I were you, I would buy an OS .40 (maybe .46) LA engine from Tower Hobbies. Easy, simple, reliable engines. Spend less time dinking with an engine and more time flying.[8D]