Have you thought maybe those dozens of good smiths that you know might be local to those who are asking for local a local gunsmith
Marc is local to me and I'm not going to ship my rifle off to someone if I don't have to. Marc is good people and a good smith
Has you seen this thread
https://www.snipershide.com/shooting/threads/223-magazines-for-the-post-2014-aics-ax-chassis.6452461/
I bought 2 and modded them a little different than the way the poster did it in that thread.
This one uses AR mags and Its On Sale
http://pacifictoolandgauge.com/battle-worn-bottom-metal/14860-remington-sa-700-dbm-battle-worn-for-ar15-223556-mag-stealth.html
I suppose if I sent a scope in December 31 then on January 1 its been a whole year that the manufacturer has had the scope. Somebody needs the Easy button.