HI again.

As far as it takes some time to build, it seems to be perfect for me. I like models that requires work. I would like to make it a very acrobatic model. Fun to fly. Thanks to what you have written, I can see that definitely it calls for tons of power. The" optimum" engine for the 4 stroke realism that I am looking for would be a YS 140 DZ, but.... that is expensive. I think, it could be like a MOKI 180, but with the sound and advantages of a 4 stroke.
I kind of confident that IF I can build this plane light, about 12.5 lbs dry RTF, It could be a very nice combo. More comments are very welcome.

THANKS.