I think if cost is a concern than you should look to stay in the 30% size market.

What you'll have to look at are the diamensions of the 30% class, I think you'll find there are a few that will handle the 75 class engine. Our 35% will fly fine on a good 80 cc but you will sacrifice some unlimited performance.

There is not alot of difference between most 33% and 35%. I think you'll find on average that a true 33% to 35% have a wingspan of 100 to 106 inches depending on which plane you look at.

Al