I'd be a bit hesitant to circumnavigate or do a South Pacific cruise in either of them. The Waquiez Gladiator, the Hallberg Rassy Mistral, the Hallberg Rassy 35, the Allied Seawind Princess 36, the Cape Dory 36, the Alberg 37, are all probably better choices.
However, most bluewater capable boats are not going to be as comfortable as liveaboard boats, as the boats tend to be a bit narrower in beam, with less living space than a coastal cruiser of the same length. However, in a heavy sea, during a bluewater passage, the narrower confines will be far more welcome... as will the better placed and more common handholds.
is a boats.com search I did that may interest you. I've run the search with a price ceiling of $50000, since it is very unlikely that you will pay the asking price, if you shop wisely.
While, I would generally recommend leaving about 10-20% of the budget aside for refits, repairs, upgrades and modifications... as that is generally necessary, on almost any boat you will buy. However, since you are going to liveaboard for a few years, you can probably space those things out a bit.