I have a pair of older OS 30's, nib, that I would love to put in a push-pull configuration like the Cessna Skymaster. These engines have strap on mufflers so I know they are old, probally from the 70's.I would like to design a plane for these boys, but am not sure of the relationship, % wise ,as to the relationship of the wing and tail section and what I should be going for in length of fuse. I have never before designed a plane before but would love to try something like this. I would appreciate any advice from you guys and gals that would help get me to the drawing stage. Thanks in advance.

Bill