From personal experience, I think the only way to know whether the boat is right for you under the circumstances is to give it a trial run. We bought a 36' cat several years ago with the idea that we would move aboard and cruise
full time. We enjoyed the boat for multi-week vacations but discovered that it did not meet our needs as full time liveaboards. For example, the fridge was poorly designed, but I could live with it for a few weeks at a time. After 6 months of living with it 24/7, I was ready to mutiny!
We ultimately sold it and bought a 42' cat, not so much for the extra room as for particular features that we discovered we wanted/needed. We actually did an evaluation of the entire liveaboard
thing at the end of the first year. We initially discussed whether we enjoyed the lifestyle, and if so (we did), whether we were on the right boat to continue (no), and if not, what is the right boat. We did lots of research
and came up with our Manta
42. It works well for us.
I'm not suggesting that the Athena will not work for you. I am only encouraging you to spend enough time on her to help you determine whether or not she will meet your needs as full time liveaboard