You might try searching the archives at MAN (model airplane news) or RCM (radio control modeler) magazines and see if they have pictures. Both have websites however I'm not sure if this type of thing is possible.

One of my all time favorite conversions was called the "Cheapmunk" and was a conversion of the Sig UC Chipmunk kit. It was in RCM from the early 70's. The cover has a orange and blue J&J Eyeball (with lovely model) in front of the Dremel factory.
This changed the plane to a low wing and converted to tricycle gear. I have one of the kits and plan to convert it using the wing tube method much like the Sig Somethin' Extra. This kit is still in production.

I have a spare copy (cover damaged but contents readable). I will sent it to you if you like. Send your address to me by PM.

EXCAP232