A picture would be nice, Pickle. Alas, I'm a heretic degenerate and I don't allow rocks in my pots unless they are decorative. I use a formula that is basically improved dirt. It works for me and my watering habits, but I'm sadly out of touch and behind the times. I wouldn't repot right now, I like to repot when plants are in the full-tilt boogie growing season. I would wire that sucker down right now tight enough to prevent rocking which breaks tiny roots. Don't worry about how it looks, for now just use a long, skinny screwdriver to find paths to the holes in the bottom of your pot to stick wire through so that you can bind the tree in place. next time you repot you can do a more proper job where you hide the wire as best you can as part of the repotting process.