Do it yourself!
It's not really that difficult. I would check out Nigel Calder's Electrical Bible for reference but you can do it. You need a shore power outlet, 3 strand boat cable (not romex, the stuff used in houses), a Blue Seas AC circuit breaker panel (it has a couple of outlets, double throw switch & room to grow) or the like. Remember, if you add any other outlets in the boat, the first outlet in every string needs to be Ground Fault Interruptor(GFI). I'd also drill the hole in the side of the house instead of the deck cuz the deck has coring & the house doesn't so there's less chance of delamination.Get a good manual (like Nigel Calder's) - there are tons of 'em out there - and get to work! There's nothing like doing it yourself - such a feeling of accomplishment.LaDonna