I put shore power on Falcon years ago Used a small Blue sea pannel with a main and three breakers Hot water heater, Battery charger and a pair of plugs added to each side of the cabin
It works well for 1)dock side and its a real nice thing when the boat is on the hard for power down below Keeps the batteries charged etc
If I were to do it again I would do both the 12 v and the 115 in one pannel Blue sea has a nice one it would make for a cleaner installation