Thanks a lot. That relieves some nervousness. 6" shorter sounds about right (dumb me...can't find the paper I wrote the measurements on). Yes, I'm using the stock 1979 single disk up front with the stock master cylinder.
My brake setup will be:
Front:
Rebuilt stock master cylinder/reservoir, rebuilt caliper, HEL brake line, DP Sintered Metal pads, stock disk, and Bel-Ray DOT4 fluid.
Rear:
Stock drum works better than the front right now, so I'm not touching it.
I think that will be a good setup, not great, but a whole lot better than it is right now.
A word about HEL, great product/customer service/shipping/etc. They're just south of me also; down in Tampa.