Your best bet might be some homemade liquid fence and/or some protection at the trunk for the bunnies. Honey Jar will probably have a few thorns, and you’ll want to situate it with plenty of sunlight for good fruit set (you’ll also need a second variety for cross pollination, I put a sugar cane branch on mine last year and am adding more varieties this year).
I’m not sure how the gooseberry will set fruit but mine are currently under trees. Someone else might be able to help with that information.