As I said in the "ground cover" and other thread, I'm going to white clover in the garden spot. Probably will use what I have left over around the fruit trees. Crimson is a lot cheaper and I like it. My wife likes to find 4-leafs in the white. WTH.
The only pH adjustment I've ever really HAD to do was around the lakeside. I found that most stuff will grow to my lackadaisical standards without it.
Get, from the nurserypersons or the county extension agents, a recommended spraying schedule for your orchard. From your other posts, you sound astute enough to have already figured that out.
Commercial peaches and plums "come here looking for a convenient place to die", according to the professional growers I know. Even with my scrupulously adhering to the spraying, pruning, and mulching schedules, I still lose them far too often to suit me. A nurseryman I know, who is also a professor of horticulture at a local university, gave up on growing peaches...there's a clue for us.
BTW...do you know the difference between a horse and a prostitute?...you can lead a horse to water but you can't lead a horticulture. That's his favorite joke.
So I keep a couple of the native varieties of trees around just in case. There is the old (so-called) Indian purple, and a mealy-white-fleshed variety that show up here. Very often they come up from where we scatter the seeds from the preserving scraps. I have several of them growing in untended areas and a couple in the orchard.
The Pluot/Plumcot/suchlike varieties, mostly used for rootstock but marketed by some nurseries, are hardy plums. They, like the native peaches, will die back to the roots but sprout again and again. Also, I've transplanted some native red&yellow plums to untended areas. So we usually have some fruit, even in lean years.
I don't spray my apples (Anna and Dorsett, one each), pear, grapes, or fig. I figure that if I can find those kinds of fruit living around abandoned homesteads, intended for generations, that they need little care. So far, it's worked. Keep us posted on your progress...you write good stuff.