I got a new .338 AM from Kirby and my 375 AM is for sale. Has 3 magazine options. Groups 12" at 2200yds.
I had Kirby build a rifle for me when he was still kind of unknown. It shot great, however there is no way I'd wait 3+ years for one. Plus he's too busy to even work on the rifle he built for me.
I had a 6 month wait back then, we'll worth that!
Is he somewhat of a pioneer?
Yes
A wizard?
No
There are lots of good gunsmiths out there that make just as accurate a rifle. My latest rifle was put together by Long Rifles Inc and shoots freaking awesome! Had a longer tighter twist barrel put on by another smith/builder and it shoots just as good. One week wait and a fraction of the cost.
I think your best bet is to get the components yourself and have a reputable guy put it together. Less wait and less heart ache, plus you get exactly what you ordered.