Well I might be able to help as I crossed the Pacific in my 42 foot Cheoy Lee named Oceanus.
You will move less in an RV obviously and of course depending on the size of your boat you may have more room, which we need to know to make any intelligent comments.
The biggest thing I have found that my experience on board does for me here in the RV is that after refitting my boat, replacing all the electrical and plumbing myself and installing all of the Radar, Nav Computers, Radios, weather faxes etc...nothing I face doing in the RV is much of a challenge.
The next best thing is that I use the higher quality Marine grade products when I do fix something in my RV.
And I for one would rather deal with Marinas and or customs docks than most RV Parks.