hi Maddie and welcome.
Do you have a budget? I would suggest you focus more on the liveaboard aspects you MUST have rather than the sailing characteristics or things that can easily be altered like a traveler. Any good rigger can help you set up any 30 footer for ease of single handing. More important to your living will be things like:
Propane or alchohol stove
Stand up shower separate from the head.
Space and storage
All you really need is a production boat that meets your needs and is in good condition verified by survey and diesel mechanic.
Suggest you visit yachtworld.com and use their advanced search to input your price range and size range and geographic area to get an idea of what can be had and to see different layouts.
Glad to help further as you refine your ideas.
No longer posting. Reach me by PM!