I'm building mine for electric power and ready to sheet the wings. I purchased some 10" wide sheeting from Balsa USA and plan to use aliphatic resin and iron on the balsa sheeting. The tail group has been lightened by adding holes to all areas. I will also remove some weight by removing some of the fuse balsa as well.
An Axi 2826-10 and either a 4S or 5S lipo pack at 3800Mah should provide more than enough power if I manage to keep the weight down.
I had to start another fuse as the old one had been damamged and the balsa was dried out a little too much.
There are other threads on this plane in this website and RC Groups.com as well.
Good luck with your build . jollyroger