Well, I sorta built one already, except I made a trailer, rather than something self propelled. I had a budget of about $200, so power plant wasn't much of an option. I bought a welder and a half dozen bed frames from Goodwill, and learned to weld making it.
14' long on a 1930's ford axle, it's where I type from presently.
Now, I made it cheap, cuz I don't need much, and it's all used leftovers from jobs I've done. So it looks crappy. I didn't make it to be pretty, but to save time.
I've been considering the homeless, and Elon Musk's Hyperloop and how to view development holistically. A lot of folks don't care to, or can't, deal with the bureaucracy and entanglements that working a job, paying rent and taxes, cleaning under the washer and dryer, etc., take.
So people end up living on the street, where they cost businesses money by harassing passers by, and die too young.
It would be better for all concerned if something like you envision, and I built and live in, were made available to them.
On Mars, where Elon is going, there aren't going to be any McMansions for a long time. Engineers, miners, teachers and farmers are going to have to live in cramped quarters, and with their tools handy.
All of Musk's companies are actually designed to produce the infrastructure and services this Mars colony is going to need. What the people there are going to need to live in are like what I live in, a tool trailer with a galley and a bed. The hyperloop can transport their homes and offices to the job site, where they don't need to commute in dangerous Martian conditions. That's pretty much where he's heading, I reckon.
I mention this because it's kinda like what you're thinking, and what I did. Tomorrow I move my trailer to another job site, and the tools come with me. Cheap, quick, and easy.
We're not alone. There are a lot of people being priced out of home ownership, and paying someone elses mortgage (renting) isn't sound financial strategy for creating a legacy, or retirement.
The shipping containers are quite sturdy structures, and cost around $3k in good shape. They'd make a fine start towards customizable home/workshops. I know some folks living in them now.
Anyway, I have done some thinking on it, if you wanna collab.
certainly do.
I'm looking at takeing possesion of the SeaCamper about 1July.
I'll move it to a rental space I've located ....
then work on it until it's done.
I don't care if it takes years. I mean..what ELSE have I got to do?
Any and all suggestion will be gratefully accepted and considered.
Well, after seaworthiness and creature comfort, my first consideration would be input and output. At sea there's no deliveries of pizza or fuel, nor any septic tanks or dumps. Storage of all such things is pretty critical at sea.
Not so much on land, cuz you can just step right out and walk to where the goodies are, or the garbage goes.
I can add more when you're faced with work to achieve what you want. Of course, your goal is going to determine what matters. If you're gonna be at a dock, then it's much easier to deal with inputs and outputs, or on land, well, it's trivial.
It all depends on what your plans are.
not AT SEA
at LAKE..
or
inna river.
there are a BUNCH of rivers in the US of A..and lakes...and the intercostal waterway..
thousands and thousands of miles