Re: Purchasing first used Live aboard input needed
You've actually thought this out much better than most potential Live Aboards. Congratulations.
However, research just where you will be allowed to do so.
A couple of years back, here in the SF Bay Area, when I went searching for a Berth, one of the first questions asked of me was "Do you intend to Live Aboard?"
Their Eyebrows told it all- the Finality of "No".
I have a perfectly useable House inland, and it's paid for, and I was prepared to pay the first Year's Berthing fee up front.
I got a very nice Berth in a very nice Marina. But I can stay no more than three nights in a row, officially. Sigh.
Last month, when I paid for the next Year's Berthing, I again inquired about maybe spending four or even five nights onboard at a time. Eyebrow Alert.
And then we got to talking. I mentioned that three decades back, Liveaboards were valued. They walked the Docks at night, and took care of minor problems before they got to be Major Problems. None of them had Dogs. Maybe a discrete Cat...
It's all changed since then. Drugs, the Homeless, Alkies, Craigslist, and Dogs. There was a Sneakaboard a couple of Boats over which was all of this, last May. His Dog kept barking at me, and when I Meowed Back, I was threatened. I'm not normally a Snitch but... Really.
Indirectly, it was later mentioned that as long as I moved my old Mercedes Wagon every couple of days from one numbered spot to another, the Night Watchman wouldn't have it Towed. Parking is tight.
Enough about that; Boats:
For a Liveaboard, every Boat that you mentioned would work. Yet, every Boat is a compromise. Some Boats are more compromising than others.
That Catalina 42 looks good, although I'm a Beneteau Guy.
Whatever Electronics is installed is already obsolete, even if was installed last week. Engine hours don't matter so much as how those hours were spent. Charter Boats can have a lot of Nautical Miles on them, but they can have been better maintained than a Lawyer's Weekend Boy Toy.
I'm of the conviction that an Aft Head is an absolute must. So did Arthur Ransome, a century back. For a Liveaboard, it will need a large and robust Holding Tank, and thought should be given as to how and when it will be emptied. Just because Whales poo in the Ocean doesn't mean that you should.
The same thinking should be given to the Gray Water Tank, for the Galley and Shower.
Living Aboard can get complicated, when thought out, if done Right.
For Refrigeration, I use one of those ~$100 Portable Icemakers from Home Depot. They are surprisingly efficient, run off of the Inverter, and mine now dumps right into the Icebox, after modification.
AC is of no concern for me, Heating is. A Vornado run at the lowest setting makes my Nav Station or Aft Cabin snug, even while Frost crystallizes on the Cabin Top, just before New Year's at Dock.
At Sea, that old Volvo engine with the Companionway moved to one side, just radiates heat into the Cabin, at idle. (In 30 years, it had accumulated ~320 hours on the clock, and it had just been freshly overhauled just before I bought her. Spotless. An Architect owned her, not a Lawyer.)
You have your Dream, and those should be followed. My Dream, a real Dream when I was 12, at 3:24 in the Morning on August 29, worked out incredibly well.
But with all of this Boating, and Floating, and Searching for friendly Marinas, you have neglected to tell us just how you are planning on making your Living while doing all of this.
I do hope that Meth isn't involved. Or Advertising. Or Website Development.