Hello, I'm moderately new to honing and restoring straight razors, but my shop would like to start offering it as a local service. We wanted to know what materials are required to be able to fully restore and fully sharpen.
Current setup:

Combination India
400/1000 grit DMT (we figured we would use this for the occasional pocket knife that comes in and needs to be resharpened)
Soft Arkansas
Hard Arkansas
Black Arkansas
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Green buffing compound
Red buffing compound
Leather strop
Honing oil (combo of kerosene and mineral oil)

We only have a slight clue of what tools are involved in restoration, and would prefer a more educated idea on this front. We're only a small shop, would prefer to stay away from expensive power tools if they are out of budget for now, so alternative tools are a welcome option.

I can get straights to a hair cutting edge with this combination of tools with relative ease. Is there anything that I'm missing on that front?