I may have missed a few points, but my observation is that you're planning beyond your means, perhaps. So, I mean, we have a goal and vision here as well. We share a passion about climate change and people's poor habits and the toxic culture we're stuck in. But you do need an attainable plan of action. So, start small and eventually work up to big, even if big is the passionate end-goal.
I agree that the price tag of finishing the houses seem alarmingly high. Do you have resourceful ways of sourcing second-hand construction materials and house stuffs? We try to keep eyes and ears out for scrap construction materials, give-aways, and good used stoves and building materials. I also agree that (utilities aside) a comfortable living space could be had for just a few hundred, and a luxurious one for a few grand; depending on your perspective. Also, if the cost of utilities are that high to install/hook up, and you have multiple structures to consider, have you thought about going
solar? A $5,000
solar setup would be bigger than what we have now, which is 800~ watt charging system on a nice sized battery bank; we can run 3 freezers, the blender, the washing machine, the computer, the internet, and still be at 14.9 volts when the sun is out! It ran us under $3k. Trying to reduce your renovation cost from $5,000 to $2,000, for example, would not be so much about proving a point (although there is something to be said for doing so), but also because you don't HAVE $5,000, let alone $2,000, so it becomes a matter of necessity.
I also wonder why an excavator is needed for livestock and growing? If I read and remember your words correctly. If it's not within your means to get that excavator up there, can you make due with what you have? We have our livestock in some pretty shear draws, they have to work to get around! Including the pigs! We get out with the chainsaws and clear fenceline, pile slash, and thin the trees so the brush and ground cover can flourish. We build simple structures for them out of
wood taken right from the 'pastures' and the animals feed themselves on the vegetation and forage. We take the old pastures they've been rotated off of, after they've cleared the underbrush and we've thinned the trees, and seed good pasture and ground cover so it will feed them even better the next time they come through.
We also have been planting orchards and crops just on the raw hillsides, utilizing small swales and natural features of the
land to promote moisture retention and reduce our labor. I realize we're in two very different environments. But reshaping the mountain is not imperative to our survival here.
Lastly, what is your target audience for rentals and such? And your price bracket? We resigned the idea of renting for money this year because, once we ran the numbers, the cost of overhead, taxes, and maintenance on our main rentable cabin is so high, we'd have to ask $1,000 a month just to make it worth while! And that's not including any insurances. No one is going to pay that, let alone even $500 a month to be here (which wouldn't even bring us $100/mo after overhead); there's no way for them to maintain that income stream unless they have a very niche, unique job working from home.
We are, however, branching out and seeking folks to come stay for fair exchange. Which could be cash or labor, and honestly we'd appreciate the labor more. And the folks that we've been talking to are totally fine with staying in a lean-to, a tent, an unfinished, rustic structure, and living extremely simply. Have you been searching for folks here on Permies and tapping into the right groups of people for work-trades?