Joint-Ownership / Offshore Cruising
I would think that this would be a more appealing offer if you took some time to learn to sail before offering to enter into a partnership to go distance cruising. Cruisers all have their own cruising personalities which are distinct from their ''normal personalities'' and that sense of how you want to cruise can only come out after you have cruised for a while.
With all due respect, I suggest that you either go through a sailing school, or find someone to teach you to sail, and then buy a smaller, simplier, cheaper boat and spend a year or so sailing and developing cruising skills.
At that point you will have a lot more to offer to a potential sailing partner. (and besides you will also understand why one of the two boats that you mention is totally inappropriate for offshore work and the other is okay for one person or a couple but would be a little small for two strangers cruising together.)
This is not meant to be either a put down or to discourage you from pursuing your dream. We all had to start somewhere. This is solely meant as a helpful recommendation.