If you want a truely custom stock made for your rifle be prepared to pay for it. The blank alone will cost you $500+ if you want a piece of wood with a feather croch or stump figure and fiddle back through out, or a marbled English walnut stock, etc...

After it is all said and done you will be looking at $1000.00 at a bare minimum. You can get into some very rare paterns of wood and get into the tens of thousands of dollars just for a stock.[] True custom stocks do not come cheap.

If you want a semi custom stock shaped from a standard patern but of fancy grade wood with limited options you can get away for about $500 - $750

I also highly suggest you contact a stock maker that has all the necessary tools and equipment to make a custom stock.