Some additional thoughts: what is the Prenn method of water supply? I've not heard of it and can't find anything googling it. more on water: we have a cistern and will only use the water for flushing toilets and washing, not for consumption. also, most surface water, even if it's a new pond is not safe to drink in the area due to agricultural runoff, mine contamination, acid rain and local septic runoff as another poster mentioned. you're going to need some sort of water treatment system, either a sand filter or r.o. if you don't have a well, and even with a well, the water is full of iron and manganese and where it is not it's full of lime, really mess up the plumbing in no time. With all your new plantings, you are going to need a LOT of water to keep them alive and you just can't depend on rainfall in Ohio. This spring and June were one of the wettest on record but the past few years we've had drought conditions one year and record floods the next.
seasons for planting trees, if they're bare root like mail order, plant in the spring. balled and burlaped or potted from a nursery can be planted just about any time but conventional wisdom says in the fall so the roots get established over the winter. you still have to water them though, especially since Ohio falls tend to be dry. but if you plant in the fall be sure to protect from the deer who love new young trees to nibble when the other browse is gone. or even before! if you're off grid what are you doing for power? What kind of house are you going to build? just curious. We have electricity but a big generator for when the power goes out which it does frequently in the country for some reason. love to hear how it's going and share some experiences!