First prepare the tree so decisions will be easier to make.
Go through the entire tree cut away any dead twigs/foliage, and pull away all of the weak, wispy growth interior growth that will never become anything (i.e. anything that has been shaded out and is too weak to wire). Also, reduce to a single branch and clusters of branches, and remove any branches that are growing in the crotches of the branches.
Then try and locate the nebari. Brush away the soil until you find it, and if it is a few inches below the current soil level, cut away the rim of the pot so the nebari is easier to see.
If it were my tree I would also brush away the flakey bark, but that is a matter of taste.
Once all that is done, you can start thinking about styling. I suspect one or maybe two large branches will have to be removed. Lots of strong growth will have to be cut back as well, but it is hard to tell what right now.