Hi. You might do a search in the nude forum for more info.
Check out this thread, for instance.
LinkAlso, here is a report on Residence Adam and Eve.
LinkWe have personally stayed at Club Fantastico, but not Jardin d'O. I personally really want a good view and CF has that in spades. Parking there is a bit close, but is available.
The other thing that I might suggest is that there are a lot of places on SXM where you can be nude in your lodging and your yard, and then go for the day to Club O beach. It depends on what you are looking for specifically.
SXM is very worth it, regardless!