I am in the process of doing the same. I manage to get the sprawl (Shiny piece that hold the spring) direct from Isuzu as a standard part from the old KB series. On later models it is not listed as a separate part. I can mail the apt number to you Monday. The large inside lock ring near the base of the hub body I could not find but I went to one of the main bearing manufacturers and manage to find a similar lock ring on a bearing. A lot faster and cheaper than ordering it from Isuzu.
If you manage to find a part number or supplier for the rubber rings that go around the dial I would be interested in it as well.
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