I don’t think I’d try to raise chickens and rabbits that far away. Even a great neighbor isn’t likely to be able to give them the care they need.
With larger animals, escapes would be a worry. Even healthy trees can fall on fences. Minor flooding can wash out a post. Feeding them in bad weather like snow storms could be a problem.
I’d start with improving the land and planting trees and berries. Fish ponds are great. You could get into livestock after you know the land better and have a better idea of what problems can come up.
As far away from retirement as you are, buying less land closer to where you live could be more enjoyable. Even a vacant lot could be very productive, if there aren’t any codes keeping you from having a huge garden, rabbits, and chickens.
Can you raise anything where you live now? I live in town and have a couple gardens, four chickens, and many fruit and nut trees but they’re all still pretty young. I have some land ten miles away that I’m planting trees on. It has a fish pond, and I raise bees there.