custom stock

Need a little help sourcing a detachable mag for my rifle and caliber, and wanted to see if anyone on here could help. It's already been a few weeks of continual searching to no avail. First, I already know it's a bit of an odd ball configuration, but I'm down to one part and just need to find...

New, in the box McMillan Remington Hunter black rifle stock with palm swell and Enhanced Edge fill for heavy magnum. Machined-In Pillars, RH, Long action Rem 700 BDL, full inlet for Remington 700 Long Action and Proof Research Sendero barrel channel, 1.200" dia, w/ 2" cyl, HUNT-FULL INLET, 1"...

How do you feel a long range hunting rifle stock should be set up? Currently looking at 2 flush cups on the left side (right shooter) and one sling stud up front for a bipod. Anything else useful? Adjustable pull recoil pad worth the money? Pillars installed from the stock maker vs using...