I am retired so decided to pour a slab and install a little electric for my "RV" and I ran in to a few situations that I cannot seem to research and get an adequate answer too. So I thought maybe I should ask the "experts" here! A. ----If I decide to go the 6 "Offs" instead of a main breaker at the sub panel--are the 220 outlets with a double breaker counted as one or 2 ?--I intend for the panel to have 1-110V-light duplex receptacle, 1-110 power duplex receptacle 1 -250 30 amp L-6-30R (compresser outlet) and 1-50 amp 120/240V RV service---I think this adds up to 6 breakers---2 double pole and 2 single pole-----SO--do I need a main breaker---or will the 6 strokes off rule make me legal? B. --I intend to go with all GFCI breakers at the sup panel----Is that a good idea?--I am coming off a 200 amp main service panel ---should the 50 amp there for the sub also be a GFCI?