That sounds like a tough job ahead of you...BUT...think of the satisfaction when you've got a beautiful garden of amended soil! I've struggled with fertility issues too, especially because different crops need various amounts.

I couldn't grow radishes at all. I discovered this year it's probably because my soil is too nutrient rich! oops...I went too far on the scale. So next year I'll grow them in a bed without enriching.

Looking forward to see more of your garden evolution.