Permaculture in the polytunnel?

We have 2 polytunnels & are thinking about using one for fruit. I am not very experienced but am wondering if we can plan a kind of permaculture fruit & veg structure, with fruit such as figs & peaches, strawberries, some veg in between that can grow along, like beans climbing up the fruit, etc, like a miniature forest garden in a polytunnel. Do you think it's possible?

You should have seen the cherries in a greenhouse on Beechgrove this evening