I think going off grid is a great idea provided your household members support the idea because sooner or later they will need to do something to help in some way and they need to be happy to help otherwise your life will become miserable! I don't think Rent to Buy is a good idea because you are really just asking someone else to borrow some money, add some risk contingency, add some profit and you hope they provide something that is any good. I think its better to get your own loan, do your own research and install something that actually does what you want. The best thing is that you are in control and not in the dark!