Gas power vs Electric motor power?

Too much concerns about the bad habits scatters my concentration what to do first, CPU in my cortex is almost overheated. My first EP experience would be done on Gold Wing 30 cc acro airplane. Before starting this creation, some fundamental distortions depending on the rough construction in China manufacture. Because of cheapest price that I had paid, no complaint about any mal-construction should not be given a voice, just correct by myself silently on all the discrepancy. Ugly distorted vertical stabilizer twisting to the right side must be turned back by cutting it at the centric line that is exactly the same as the method done on the main wings of China made ARF models. It goes without writing that the fallen vertical stabilizer causes some strange bad habit especially on out side loop maneuver, so this kind of primitive misconstruction must be fairly corrected at any efforts.
Modified Majestic is stopped because of the ambivalence on power source selection, GP or EP? If 4 cell driving is insisted because of battery weight barrier problem, some adequate motor must be prepared, Futaba motor or OS?