as i've said previously, i've had excellent luck with a campy carbon square taper road double...

centaur crank, matching 111mm centaur BB, both ramped/pinned road rings removed / sold / replaced with a 1/8" miche ring in the outside position. chainline was very close (probably acceptable to most), but i'm a perfectionist and am running a completely 1/8" drivetrain (less flexible), so i added a 1mm spacer behind the rear cog. still plenty of thread engagement on both the cog and the lockring. no chainstay clearance issues at all.

thousands of miles on the setup with zero issues.