I'm not sure I would shy away from a nice kit if you have the money. Look at the kit in the photo. And you can route the pump lines nicely. I put my hydroboost on as a test to see if it really was better... IT IS!
I may still get a kit, I like it.
Only thing I would suggest on using junkyard stuff is to get the master with the booster.
And, forget about the special socket for getting that stupid claw tooth nut off the mounting plate. Just bust it off and use a spanner nut. You can torque it down with a gland nut wrench.
Also, you want the proper accumulator for Disc/Drum or Disc/Disc.
But like said, you can do it for dirt cheap. And lots of support here.
I hate this stupid nut!
j