Bah - its nothing that it hasn't been through before. Easy fix. The Super Cub is like a honey badger...
What's not so easy is the cause of the crash. I've soldered the module antenna wire back on 2 or 3 times. It works for a bit, then breaks off again. Full disclosure - I broke the stock antenna off in a moment of sheer brilliance.
The current antenna is a replacement. Finally going to order the FrSky telemetry module and rx and be done with it.