You might not need to change at all.
If you do a lot of marina living, then yes you might. But then the costs to change over are only a few days worth of marina fees
The last time we used shore power
was 3 months ago.
If we needed to run a drill on board we could just run an extension cord inside, couldnt we?
heater element is one of the only things that runs off electricity apart from the battery charger
... so its not going to be a huge, daunting job to change it over.
cn all be the same (Did I just hear a flipping out Marine