In my opinion, nothing detracts from an expensive exotic holster as much as cheap set of grips.
I began making Stingray holsters and grips for Seecamp pistols around 2008. You can see samples of my work on the following page. Just click on the button above. I am happy to continue making these items out of Stingray as well as other exotics (when available) such as Elephant, Giraffe, Snake, Lizard, Ostrich Leg, Cayman, Alligator, etc.. I make exotic leather holster only. I do not make standard cowhide holsters. The ability to cover your grips with a matching exotic hide depends greatly on the configuration of the grips and the hide you choose. There are many case where you just can't remove enough material from the original grip without ruining it. And guns with molded frames like Glock obviously won't work either. So far I've been limiting this to Seecamp. Rohrbaugh and some NAA firearms but I'll be glad to take a look at your grips to see if Leather grips are an option for you.