Need UV mapping expert ASAP

Closed - This job posting has been filled and work has been completed.

Job Description

Looking for a UV mapping expert, attached is a screenshot of the current UV mapping to the "floor" of a hemisphere.
The UV mapping is required for the "floor" only.
The mapping must show any Equirectangular (standard sphere, HDRI environment) texture without distortion.
As you can see the job is almost done but there is still distortion (mainly in the center).
This will require manual UV mapping till perfection.

Please attach links to relevant previous works.

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