I am a 50 year old single mom, with a quarter acre of Pennsylvania half mountainside, half floodplain land. I have not much money or time, but would like to plant my quarter acre in a permaculture way... I have read the nutshell book, and lots of stuff online. Can't afford taking a permaculture design course. I already have a nice 12x35 foot hoop house, in the somewhat marshy lower section of my yard, and a nice chicken setup with 9 chickens. I want to think about the long term design issues on my property, of which there are many. I can afford to spend about $30 on a book or two now. What do you recommend that will help me choose what landscaping (earthworks, trees, other large things) I need to prioritize?