Nice review, thanks for the time. That plactic part near the RD hanger bolt, is that part of the "B" screw adjustment ? I don't think I'd worry about it too, much.
Looks like I'll have to get a braze-on adapter for the FD hanger, for the bike I'd mount this syztem on. For $168, delivered from US sources (Amazon] , I'd give it try.
And I'll need a Roadlink, to use a 11-34 casstte. KB