It seems that you are plant zone 4/3 after a bit of researching. You have about 2inches of rain every month.
You should
1) Get a soil test
2) Add trace minerals and get your Ca, Mg, K etc ratios balanced.
3) Add some microbes
4) Add 30lbs of dutch white clover per acre to fix nitrogen and build soil
5) Add 30lbs of daikon radish to help infiltration (they have 3ft/100cm carrot like roots, plus fine root that goes another 4ft so 7ft root system)
6) Add 2inch/5cm of mulch, you want the soil to warm up quickly, deter vole/mole
Can you give us numbers as to how steep the land is.
I currently live on very flat land now about 1ft drop for 100ft travelled.
I once live at a site that had 10ft drop for 30ft travelled.
Can you upload some pics of the site,
maybe googlemap+printscreen>>MS paint to let us know what ideas are going thru your head.
Check out this website and let me know what you think of it
http://www.nuttrees.com/other_edible.htm