Cold (split) resistant bark.

So I reside in N Idaho.
A local farm grows wonderful peaches and I asked his secret;
He said the only thing that allows him to stay in business is because he's on the North side of the hill...and because he's on the north side of the hill, by the time the sun is hitting his trees enough to make sap flow, the danger of frost is over. He continued to say that is he were on the sun blessed side of the valley, that the sap would flow and the freezing nights would cause the bark to split.

This caused me to look at the family orchard and sure enough it faces SouthEast, and yup, the majority of the domestic fruit have the bark split (some trunks almost completely denuded)!
The only trees not suffering are native wild cherries and plums.
Apples, Pears, Korean pears, Queen Anne Cherries and Bings.....all split.
I've since sold that property and hope to move to a higher elevation (3600 ft) The place I lust after has wonderful water is completely in the sun,  bitter wind and brutal cold. The only trees I see nearby are evergreens.

Is there a compendium of cold hardy fruit trees that will survive the springs bold sun, and bitter nights? (preferably dwarves...(ladders are evil!))

I don't have a list of trees but could you instead find a way to shade the trunks at that time of year?  Maybe a small evergreen shrub that keeps the sun off?  Or maybe it's not just the sun that's the problem, it's also the early sap flow.  But maybe shade around the plant would slow down it's internal clock in the spring.