Now, you really need to know the AUW of this plane, if you want to fly 3D with her. I would say why not go with a 50"+ EP ready plane rather than this one, not sure if this plane is light, from the pics she looks like your average 40 sized GP plane and it might be heavy. They may say light enough for EP conversion but what amounts to light enough?

I just finished a conversion of a 40 sized sport plane and she has enough power to hang even at about 5.75 lbs. Of course the plane is not made to hang. Have a look here:

http://www.rcuniverse.com/forum/m_6491866/tm.htm

My set up was cheap. Motors can be had from www.2dogrc.com.