Easy: I would build a centre for natural healing and the internal martial arts, where people could come, stay, learn, and heal.
This would also double as a writing retreat. I've already drawn up the floor plan. It involves cosy little dorm rooms, each with a bed and desk, each one with a view of the woods or open field, and large central hall with a huge wood stove, giant windows that could be removed in favour of screens in summer, with room for a big table for evening discussion and meals.
I would build it on our family land, 98 acres, that my grandfather bought for my grandmother for $100 back in the 1940s.
Your dogs would be most welcome there.
I would build it here:
Just a little to the right of that huge conifer.
I would spend as much time as I could here, working on becoming as self-sufficient as possible, while soaking in the incredible energies of the pristine wilderness. If no one wanted to come, I would write and practice.
Basically, it would be my life right now, but with more trees, more wilderness, less time spent in the city, a few more chickens, a lot more foraging, planting, and harvesting, and more selective socializing.
(p.s. Wouldn't you love to write here?)