What should I do for lines and booster/MC?
Do I need to run a porp. valve?
Yes, All Front Disc will run a P Valve.----Oh Yes next Question, I GOT Rear Disc, Fronts don't know that, Weight tranfer is same, Rear Disc/Rear Drum, makes no difference.
Do I eliminated the stock distribution block?
Obvious you are not doing a point car, just a good driver, YES, keep the stock distribution block, plumb a P valve in the REAR cirucuit--Where ever you want, again the fronts don't care.
Bend my own lines or start with a 67 kit?
Yes, get generic lines, a tube bend, a case of Bud, HAVE FUN!
Dan @ Chockostang