In the fall, if I were you, I'd try to get some bends in those trunks. The bottom left one for instance is bent, but it looks bent like a bow. Getting that wiggle in there, that elegance, is one of the hardest things in older juniper wood. Setting branches is pretty easy after that, because the trunk will tell you which ones it wants or needs.
Reducing the tree by cutting down a couple trunks - as well as reducing the height - can really help you forwards. I used to be afraid to do so, I still am with one sabina I own. Because it means sacrificing something that has been grown for years.. But when that hurdle is out of the way, I think you can do serious magic.