The Wilderness 30 would be a cool boat to own and sail.
I think only a handful were ever built, and a few of them
are still lurking in Santa Cruz, and the SF Bay area.
They occasionally appear for sale in Latitude 38,
Since they are a ULDB, concieved to be similar to
an Olson 30, they will be light on accomodation,
but a great performer. It would be more of a camp
aboard boat than a live aboard, with about the room
of a typical 25'er.
If you search around at Sailing Anarchy, you sould
be able to find an informative thread or two about these
boats. If a budget live aboard is a primary motivation,
then I also concur that it would be worth considering
a slightly smaller boat, but with perhaps a little more
Islander 30 II 'COOL'