At this point the only thing i have done is cut down tail and remove all non structural tubing, ie flight controls, landing gear bungie attachment points ect.

I am looking at all power plant options, would prefer 4 stroke but cant afford new rotax or D-motor, the corvair has the right power and is affordable but is heavy.

I knew i would have to reinforce certain parts of airframe for engine and mast mount.

The mast is adjustable for and aft to account for different weight power plants.

I might have to go to the point of building mast mount and using ballast to see if i can get weight and balance to work.

really what i was trying to find out was if the structure on the plane would be capable of handing that weight on the front, i will work out weight and balance.

thanks