I kind of agree that 30 = 32 feet is too small for a ketch. However there is a bargain Westerly Renown in Miami that would be a good liveaboard. The one great thing a ketch has going for it is the ability to sail with mizzen and headsail only and be balanced.
A key question is where are you going to spend your time? in marinas where they charge by the foot or at anchor.
If you planned to live on the hook then one of these is worth a look CSY 37 owners version
a great liveaboard boat.
In practice the boat does not matter as much as the positive mental attitude and the required sailing skills. [ Mostly common sense IMHO ] Out here some of the people having the most fun have the smallest boats.