RE: Would anyone scratch build a super stick 40??
Why not buy the plans for the original Phil Kraft's Das Ugly Stik? RCM should have the plans for the Jim Jensen kitted version that appeared in their magazine. I wouldn't be surprised if the AMA plans services has the plans as well. Another RCU member gave me the 2 part RCM building article so PM me your email address if you want me to email a copy. It will come in two zip files 19.2 AND 18.7 MB in size. This version has a 60" wingspan and a 46" fuselage and shows the engine to be .40 to .61. That is in 1970s engine technology so a modern .40 would pull it fine.
Mike