Too Cool!!! I would think that a plane that is plank sided to the fire wall would be good without any more than insuring the joints are good. The only caution would be to rig the tail. My Kaos tail shakes pretty much at idle. I watch the tail mounted elevator servo very close and it has 4-40 linkages. I also try to use silicone between the wing and fuse using waxed paper etc. to get a solid wing/fuse interface to make the plane a rigid unit. I have an APC 4 blade I want to try. That should work for ground clearance and load the engine enough. Prof G.