I am about to build one of these CG Sukhoi kits. I bought the kit from the LHS, and it is about 5 years old with all plastic parts right now. Engine range says.91 up to 1.2, is this the same one? The LHS owner is into gasoline weedwacker conversions and suggests that I should go with an 18cc conversion. What do you guys think? It is such a beautiful plane and I am getting ready to build it after my CG Super Chippy.