lechuza

Hello, I just received the CMP 182 Skyline-140 ARF, and I have read many posts concerning different types of engines for this model. I would like to be advised about the recommended type of engine for this model( I'm planning to get a 2-stoke engine), which brand, propeller size( even if there is a 3-blade propeller), pitts(in-cowl) mufller, etc. Also, does any engine a bit below the manufacturesr size recommendation( which is for a 2-stoke 108-120), can be used too, like a for example a .91?
Thanks.