Some things you can't foresee like those notches. Looks like you made short-work of them though.
Cool brake booster too. I had a bid in on a Shimano and lost so I ended up getting a Salsa instead.
Very nice/focused pics.
So the replacement one is older/more retro? I can't run disc on my 1996 Trek even if I wanted to. None of the aftermarket stuff will fit, not that I want to run disc.