Bump for the Nonsuch. I sailed a 30'er a couple of years ago and was quite surprised at how well it did, both upwind and down. And it was Huge inside for a 30' boat. Heavy main, yes, so perhaps an appropriately sized winch
(possibly electric) to assist with raising might be a worthwhile investment. Dead simple to sail though and quite enjoyable if you're not looking to do much other than put up a sail and go. If you like tweaking and trimming, well, you'll be bored.
A Tartan 34 might also suit, if you can find one that far south. It is an older boat and design but is suitable for the kind of sailing you are planning. The lower price
might let you outfit it to your liking and make whatever changes you feel are needed to facilitate safe and easy single
handing for you. I say 'for you' because, as I sail single
handed most of the time, and know quite a few others who do as well, it is amazing how different our preferred setups are and yet we all manage just fine.
I recommended an early 2000's Hanse 42 on another thread and it is still on my list of favourites. I can't speak for how a smaller one would do, but that vintage, and hull
design, would be something I'd look for if boat shopping
Of course there are many, many, great options so I don't mean that these are definitive. Just throwing out what I have experience or knowledge about.