I personally don't like to let my plants "sprawl" over the top and down the sides of cages.. I always end up with broken branches, and harder to get at fruit.. I use 8' stakes and I rig up some pvc for makeshift trellis' on top.. I just tie up as needed.. They're not the prettiest thing in the world, but in the future i'll be using bamboo once I get enough culms put aside..
Not the best pictures, as the plants were still young and not over the tops much, but you could see the pvc here.. They're kinda funny looking, but they get the job done for now...