4-count em 4 MC's

Well today I dug out all my archived material to put my front suspension together and found a NAPA master cylinder I forgot I even had. This is after painting the wrong one and buying a new 67 disc/drum (NAPA) and detailing and painting that one. (seems kind of puny but correct for the car I guess) Then I dig out the new one I didn't know I had and after checking #'s I see it is a disc/drum unit for a 70/71 Plymouth/Dodge. The mount bolt pattern is the same and I am doing the disc/drum conversion on my 67 so I have to decide whether to paint/detail a third one or just let it go. No wonder it takes nearly a decade and the cost of a new hellcat to build a car.
Call me flummoxed (if you are being kind) DR#-o