As of 1 March, my turnaround time is 10 weeks. 

I offer premium cowhide from Wickett and Craig and Hermann Oak.
The vege tanned kangaroo is great for lining and for a thin leather to go over the steel band for most clamshell design holsters.
Please note. Lining a AIWB/IWB holster will make the holster thicker. This may not be for everyone. To keep an IWB/AIWB thin, but with the slick side of the leather against the gun, I recommend rough side out cowhide.
I do want to make it clear, due to the differences in each cow hide, batch, etc. colors other than black may not perfectly match. Remember, this is leather, dyed at the tannery and they try to be as consistent as possible.
Regarding laminating exotic hides on top of each other... The more you add, the thicker you will make the holster. The exotics are not a "base" hide. 
Black rough slick and rough out cowhide. 
Natural slick and rough out cowhide.

 

Kangaroo: natural, whiskey and black.

Dark brown slick and rough out.
Dark mahogany slick and rough out. 

Chestnut slick and rough out. 

Elephant hide.
Fully faced: $135
Large trim that covers half of the holster: $70
Standard trim in a triangular shape or goes around clamshell style holsters: $40
Snap loops: $15 each
Black
Blue
Black shark
Fully faced: $175
Large trim that covers half of the holster: $100
Standard trim in a triangular shape or goes around clamshell style holsters: $50
Snap loops: $15 each

 

Black stingray
Fully faced: $115
Large trim that covers half of the holster: $75
Standard trim in a triangular shape or goes around clamshell style holsters: $45
Snap loops: $15 each 
I am no longer offering stingray with the white opal.

 

American bison.
Fully faced: $80
Large trim that covers half of the holster: $60
Standard trim in a triangular shape or goes around clamshell style holsters: $40
Snap loops: $10 each
Cognac.
Black cherry.
Moss green.
Cognac Florida alligator belly: coming soon!
Crocodile belly.   
Fully faced: $200
Large trim that covers half of the holster: $115
Standard trim in a triangular shape or goes around clamshell style holsters: $55
Snap loops: $15 each       

 

Charcoal grey. It is long enough for belts. Please email for pricing. 

Black Cherry
OD green.
Natural

Turquoise