That would be one devil of a choice: Either rudder/elevator or ailerons/throttle...or if you split the model down the centerline: 1 elevator half/1 aileron each. BTW, I saw a similar model setup with 3 receivers: On in each wing panel (for the aileron) and one in the fuse (for elevator, rudder, and throttle). The reason was purely cosmetic, to avoid having the aileron leads intrude into a scale cockpit.

I've never had a receiver fail and have never heard of it either. I've heard of batteries failing. And that's why I'm using dual batteries on dual switches.