Having decided to convert my gas-engine RC plane into an electric for a variety of reasons as part of the repair process, I designed this:
To mount the outrunner motor onto the fuselage. I have a substantial stock of lipo batteries in size AA cells, which I can use to power the aircraft.
I also found a place that sells replacement wings cut from foam. Building one of these wings from scratch will be more expedient than building a new balsa-rib wing from scratch. Both of these will likely be more expedient than trying to repair the existing wing.