Late summer update. I've been wiring and unwiring primary branches as they grow. Undecided if I'll leave it in the ground another season next spring or get it into a pot so I can start working a bit more on the branching. The leader has thickened up a lot but probably needs more girth before it gets chopped (somewhere around the red line). The section of the original trunk behin the current leader will be carved at some point once it's out of the ground.