50mhz radios
I've been flying on 50mhz for a few years with no problems. I would stay away from 53mhz due to repeater output pairs ect.
50mhz has been allocated for R/C. I've listened several times with my ham band receiver sitting on my channel. I've never heard a peep on that freq.
Also the sunspot cycle is on the downward turn. Here in the next year or two 6 meters will be dead to the world for the most part.