I love twisted up junipers and need to fill that void on my bench sooner then later. I certainly agree with path you're taking with this one, but am wondering if you're at all concerned about having the shari in contact with the soil once the layer is separated and potted up. In my experience, the wood on these junipers will absorb and wick water up into the higher dead wood and rot things out pretty quickly. I will say that it might not be a big concern because the dead wood at the base is still quite narrow compared to the rest of trunk base, but still something to consider. Anyway, good luck with it.