Keyman,
It is just barely big enough, if you run gas/glow fuel and cut the nose down by about 2.5 inches,or add about six oz. of lead in the tail to balance, stock. A sixty weighs about twenty oz. and the Robbin will weigh over forty without mag etc. Ground clearance may be close with a 16" prop. Remove the lead in the tail and you could always go back to a smaller engine later.

Dave