Looking to put together Grand Seiko diver style homage similar to the below.

I think the Orient Kamasu would be a good yet different watch to base this on.

Questions:
Has anyone built a homage using a Orient watch before?
Are there GS style hands to fit this movement?
Are Orient spare parts available to mod?
If so, would love to get a Mako II/Ray dial to match the Seiko dial layout like below.

Basically as I see it in layman terms it’s the watch + GS style hands + alternate dial, if possible.
Anybody willing to take this one on?
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