You are in Michigan, very cold winters right? My concern with growing vertical is that if roots are not deep enough in ground for perennials they won't survive the winter. Also for things like grapes, if too vertical trails can break in the winter.
I get most of my fruiting pants from this place: The Green Barn Nursery - Montreal, Quebec, Canada. Rare and exotic fruit trees, winter resistant. Environmental Seminars and Consulting. the website has good info on planting requirements for cold climates!
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