Being one that likes to travel the road less traveled I understand the OPs position. The only option I can think of is LongRifles Inc. Call them first of course but, this is how it works.
You buy your stock, McM, Manners etc WITHOUT any inlet. Chad generates a 3D model from the dimension of your barrled action & CNC inlets your new stock based on exact dimension of your action. This isn't exactly cheap, the inletting with SS pillars & his bedding will run you $750, without paint. On the upside, you get an exact CNC inlet, not a "drop in". You get a very high quality bedding job that is as perfectly even (thickness) as can be done.
Here are some pics of the process he did for me on a Rem 700 & McM A-5. This stock was pre-inletted, Chad filled'er back up with his blend of epoxy & started all over....