That looks good @Balthaz . I’m debating on a 1911 80%. I want a bobtail 9mm commander with rails. I looked at this one.
https://www.stealtharms.net/1911-80-frame.html
Stealth Arms frames are always in Spec and Build Great 1911's
I have these tools for 1911 Frames and promote these Jigs:
Slide Rail Cutter:
https://www.matrixprecisionparts.com/19112011-tools-and-jigs/rx9o47aj51ttlbivyl8jza98nkq81o
And Barrel Seat Cutter:
https://www.matrixprecisionparts.com/19112011-tools-and-jigs/copy-of-barrel-seat-cutter-for-1911-1
Both of these tools are excellent and do GREAT work at finishing an 80% Frame.