I would say first get grass fed beef, this was a huge difference for me. Look for local CSA's or going in on a cow share and storing in the freezer. Alternatively you can go with CAFO beef, trim all the fat and get some grass fed tallow/lard this is usually very inexpensive.
Always put more priority on fruits/veggies that you eat the skin on. ESPECIALLY APPLES! Then the dirty 12, then other fruits/veggies you eat the skin on.
So I would do:
1st: GOOD quality pasture raised eggs or organic if you can't find
2nd: trim fat/get grass fed fat to cook with
3rd: Organic on dirty 12
4th: grass fed beef/poultry
5th: Anything you eat skin on Organic
6th: All organic
Primal since March 2011
Female/29 years old/5' 1"/130ish lbs