old but maybe worth a look is a cat called seawind 24 not much room below deck I'm afraid. Lots of day room
Prices range from $5000 up
But Ive always felt the good old "Top hat" is the best value around for foot for Dollar
they have a great web site
www.tophatyachts.com/ The above link you might find some for sale full head room and comfy for the size a few have circumnavigated Australia
And there's some sea breeze's in here that own some and can give you good advice
photo of one for sale in the top hat forum
NSW sailor would know most of the top hats around and could give you sound advice
www.boatdesign.net/threads/new-owner-old-boat-seawind-24.44295/ www.findads.com.au/boats-for-sale/seawind-24-catamaran.html goodness last time I looked at those they were way cheaper

but you get what you pay for I guess
yachthub.com/catlist/used/yachts-for-sale/sail-catamarans/up-to-25ft/14