I currently have grapes and squash planted with trees. Look at your area and see if the trees get felled by the vines. Here the grapes don't seem to do it much, wisteria will do it for sure, and I'm looking for other
local attempts. I think passionfruit would be very safe, it dies back to the ground here! I have that growing but not planted on anything yet. I'm also trying true yams of a couple varieties, those also
should die back here.
Kiwi is super cool, likes to be rooted in a shaded area and reach for sun, but WOW they are some big vines. They are supposed to give you many bushels of fruit pretty quick, like in 4 years! I mean mine grew two feet the first month from a cutting size plant from last year. They also tend to be unable to support their weight much like a grape even when woody, and so they can bow over small trees and pull down big branches. The way this thing is growing I think it could get to be a pruning nightmare, and you have to prune them carefully to get fruit, which makes it hard to do on a tree. I am probably going to trellis one of them with a small male and watch it for a while, and plant the other one on a grown tree and see how long it takes to wreck it. These are softwood trees, so I'm thinking maybe 5 years. Then I can formulate a plan to selectively prune the vine after seeing its growth pattern. Giving away cuttings is not a problem! Don't pay for these things! My neighbor has five of them and is very experienced, but says it is hard to keep up with. Her trellis is 4x4 uprights and bending visibly. This is a plant you have to really respect. Worst case you take some cuttings and plant them somewhere else. Hardy ones give you a little fruit at a time, real kiwi is like a deluge of fruit.