Another possibility for someone is to build a very
large Sidewinder missile (out of coroplast) where the motor/prop could be moved lower inside for protection. Did both about 11 years ago. Only negative is that
you got to remind yourself which side is the rudder when flying. Bet that could take a number of hits before its destroy. Practice enough, and you got a VTOL if the wind is not blowing..
Can even play dead.