Thanks for all the comments and suggestions. So far this has mostly been a 'head game'. I started my Willys journey 3 years ago buying a truck that a PO (but not the PO I bought it from) had dropped in a 350 SBC and a TH 350 auto tranny. They also changed out the axles, transfer case and hubs/brakes. I sort of wonder if they either lost interest or got too much $$ in it to come out ahead because the steering and front suspension are a mess. There were also some simple fixes they left undone (no speedo cable, etc).
The reason I said it has been a head game is because I had all these ideas of how to make this truck perfect and easy to drive, with visions of 500+ mile trips too. Power brakes, power steering, new interior, A/C and on and on were in the plans. For awhile I went back and forth with theses notions. I have since realized what I really like is just driving it around town a few times a week. So the goal lately is to get it safer and slightly easier to drive while incurring as little down time as possible (I'm not getting any younger!)
That being said, my plan is to get a dual master cylinder and place it in the same location as the current one. I'm fine with the pedals so they will stay the same. The existing brake lines, although not leaking, look like they came out of a junk yard and were coupled together as needed. So I will replace them as well as wheel cylinders, etc. I have a feeling the truck will stop fine once the rear drums get adjusted, drums turned if necessary, and the front pads and calipers are checked out. I've been driving it 3 years and haven't done anything to the brakes yet, so I'm confident I can improve the stopping.
I started this thread as I left town for 5 days. That probably wasn't the best idea because I can't post any photos or check anything. Consequently I will wait until I get home before I order any parts.
I am curious as to how easy it is to make my own brake lines. I had not planned on making my own but it does seem pretty simple. Any comments on brake line construction?