RE: SAITO 82 power of 9 pound hog bipe!
I had a YS.91 in my Sig Hog bipe and it was more than enough, pulled it along very strong with good vertical climb.
Flew well at 1/2 throttle so the .82 will fly it okay, but if you don't have an engine yet, the .91 will fly it better.
I feel anything more than a .91 is a wast of money unless you are looking for extreme, and you said you were not.
TW