I think having that heavy of an engine up front will just make the plane fly like crap. Way too heavy. You may also have to use 0% nitro or it may pull the wings off at full throttle. If you could find a 12 X 1/2 prop it might pull it without too much speed.
Good luck, and remember with this much power it would be best to use 1/4 scale servo's at a minimum so the surfaces don't flutter with all the speed you will have.


Ed M.