OK, lets take a good look at this.
Wing area= 2225 sq/in, lets say that is correct.
Its coming out at about 30 lbs.
So that gives you 31.06 oz/sq inch, not bad for that much wing area. ( Oh sure some can build it lighter[sm=sunsmiley.gif])
Now if this is coming at ya tail heavy with a 6lbs motor, the BME 110 is out in my mind, sure you can add cans to add weight $$$$$$$$. Why

....
So what you want is stupid power in a 6/7lbs motor, am I right!
So I would go with the most power you can get in a 6-7lbs motor!
The ZDZ 160 champion on in cowl mufflers
Now go look and see if its a good motor, is it user freindly, reliable and strong!