GTA Shops to do a custom fork converstion

Looking for a shop that could do a "standard telescopic to USD Fork conversion" on an older BMW F800s/st. There isn't any blueprints or examples of this exact 'swap' on the net so identifying most reasonable donor bike, custom trippe and other 'ingenuity' would be required. Any suggestions?

(let's not dive into the reasons for the swap which i realize is not rational, hoping to just get a shop suggestion please)

Thank in advance for your help!

West end - Pro 6 Cycle, east end - Speedworx.

I believe the Husquvarna Nuda 9R is based off the F800 but has USD forks. Might help with your conversion.