A couple years ago I bought a little WEN mini mill and about a year ago I got comfortable enough to tackle this project. I've been wanting this gun for, I guess, 20 years now, so I'm really happy to see it coming together. This was much more of a challenge than I thought it would be, basically none of the parts are available off the shelf and it's a deep rabbit hole of minutiae once you start digging in. Anyway...

BOM:

RIA 1911 GI standard
Stainless 1911 slide after I butchered the RIA one - possibly para based on sight cuts? ebay find
Dawson .425" Para Rear Sight
Cheapo sig p320 suppressor height front sight
Wilson ultralight hammer
Wilson thumb safety
Wilson slide stop
C&S long plain match trigger
Nighthawk stainless bushing
Old style duckbill grip safety
Swensen stainless grip screws
Herrett HB-1 cocobolo grips
Unknown flat firing pin stop
Tisas threaded barrel - this was a fantastic buy. Took just enough fitting, way better than the garbage swensen barrels and way cheaper than everything else decent.

Modifications:

Milled ball radius cuts on slide
Milled front slide serrations
Milled french cuts above all serrations
Milled flat top cut on slide
Engraved part number on slide - salt water etching
Fit slide to frame, fit barrel, blended rear of slide to ejector, extractor, and frame
Decked and milled rear sight to match subject profile
Reversed, profiled, and sighted in front sight
Milled dots on front and rear sight, filled with testers fluorescent
Undercut frame
Hand checkered front strap
Hand checkered under trigger guard
Lowered and recheckered mag release
Milled trigger guard cutaway
Flared magwell
Polished feed ramp
Milled trigger cuts and holes, cut and bent tab in bow to remove takeup
Profiled thumb safety, high polish
Profiled slide stop, high polish
Milled wings off of grip safety, blended to frame, high polish
Milled steps in MSH
Drilled and tapped MSH for m3 set screw to disable grip safety
Milled "CQC" and mag release cuts in grips
Fit firing pin stop
Trigger job - crisp, .025 takeup, no overtravel - took it down to the spec 3.5lbs then backed off to 4.5. No hammer follow or anything, but with the pinned grip safety 4.5 felt better.
I'm sure I'm forgetting something