Nice X-mas present. From what I understand the GT-80 will hover it with a little x-tra to pull out. The plane was designed around the GT-80. Here is a link to a review on that plane and engine combo
http://www.modelairplanenews.com/reviews/sukhoi.asp
Have fun
brian
P.S. I have one on my bench right now. Going to start putting it together right after the newyear
B-