Thoughts on Drum to Disc Conversions…

First of all, this thread has been really helpful so thank you all. I wish I had found it sooner.

I have a 69 Dart Swinger 340 that came with factory power drums and power steering (swapped to Borgeson/saginaw pump). Power booster is pretty much useless due to a prior owner's cam swap (hey, at least it sounds fun...). I bought an SSBC SBP front disc kit and had that installed. I was thinking about combining it with a hydratech hydro-boost set up, but before going down that rabbit hole, I wanted to try swapping to a manual master cylinder based on the input above. Any recommendations on what master cylinder to use?

I mean, my recommendation is still the same. I run manual disks with a 15/16" master from Doctor Diff. I've run that master cylinder with the Mopar 11.75 B/R body disks and calipers with 11x2.5" rear drums, DoctorDiff's 13" cobra style disk kit with 11x2.5" rear drums, and that 13" disk kit with DoctorDiff 11.7" rear disks. Works great.

Mopar Aluminum Master Cylinder Kit