I am a disabled Iraq/Afghanistan war vet, I use a S&W 460 10.5 Hunter with comp and and sometimes a Leopold Scope, Red dot, or just open sights depending on game. I use the large revolver so I can have my hand free from a cane or walking stick due to my injuries. I'm good out to beyond 300 meters depending on load and sights, and I can vary load quite a bit from .45 Colt, .454 Casull, up to heavy .460 s&w mag. It has been the best option for hunt with out the need for carrying a long arm. I'm still able to carry a substantial load however I need my hand mostly free while moving, even a slung rifle has caused issues. I have no issues using the 460 from the weaver, isosceles, using shooting sticks or improved means.

What I need made, and will be willing to pay top dollar for. A LEFT handed nylon/kydex(not leather) thigh/leg holster. Much of the top where the rail is need to be left open so if I'm using optics the holster won't hinder operation. Much of it can be copied from other tactical leg holsters but obviously other areas would need to be specific to the revolver.

I did purchase a leather lefty holster from S&W a few years ago and it sucks

If some knows a person or company that can make such a custom holster PLEASE let me know.