@eveningart's comment gave me an idea. It's something I would love to do myself, and it's been on my list of "what I would do if I won Lotto" for years. In Dannevirke, you wouldn't need as much money as in Wellington though.
Before I say what it is - notice your reaction to it. I expect it would either be "No, it doesn't really grab me" or "omg, I would love to do that, but there's no way in the world I could ever afford it."
We've been looking at options for how to get you mortgage free, but this is something that would go the other way and would need outside input. There are 3 potential properties currently on the market that you haven't even thought of because they'd be too dear, though 2 of them, we don't even know what they're asking for.
These three properties are all a bit out of town but more like 10-15 mins rather than 30, have some land and either already have sufficient rooms or have room to add some.
Ok, I'm finally ready to tell you - a healing centre. Somewhere that people could come to for a single appointment, for an afternoon or a day, or to have a few days retreat. You could have other therapists, and a spa and infra red sauna. You'd be the one renting out the rooms.
That 1910 place has huge rooms that could be used for talks, exercise classes, training. You could get people to come and give classes.
It's big, it's ambitious, it's completely crazy, but it lights a fire under my butt and it would excite me no end. If it has the same effect on you, put it out there into the Universe and see what happens. I've put it here on the blockchain instead of just saying on the phone, in case it gives you or any of your other friends some ideas on how to make it, or something similar. happen.
John Kehoe, Wally Wattles, and many others would say - you don't have to know how it's going to happen, you just need to know whether you want it or not.