I want to Install an exterior NEMA 14-50 (RV plug) and dual 120V GFCIs. (One on each leg). The whole thing is fed from a dedicated 50Amp Dual Pole breaker with 6AWG copper. Is this a proper way to set it up or am I required to get one of the all-in-one RV sub panels?
Also, I want to hang both dual gang boxes on a metal purlin buried in concrete near the workshop structure.