OK, update

I wouldn't bother with other flex lines.

Everything is installed and ready for fluid.
Except I am going to make a change to line routing first.
All new lines following original routing. At the point that the old single line from the master crossed over the cross member to the right side to connect to the hydrovac, I ran the 2 lines from the master and connecter to the front and rear half of the original.

Following the original front crossover line to the left front I am uncomfortable with how close the return bend to the left flex line connection is to the outside exhaust pipe (Fenton duals). I am instead splitting the line after the master cylinder and running the left front down the left frame. Much better clearance.

Other notes for people doing the installation:

The adapters to connect the flex hoses to the lines are exactly what is required. They make the connection and fit correctly in the frame strain relief brackets and use the original clips to hold them in place.
Earl's part # 989548ERL (-4 AN to 1/4" line 7/16-24). There is another number if you use 3/16 line.
However because of the depth if the fitting you need to use a Long flair nut on the line or the threads won't tighten. Randy, you can look up the other # and add them both to the "need to buy list".

I mentioned that I had a real problem getting the original Banjo bolts for the ford calipers. Don't bother trying to get them because they don't work.
Ford uses a very thick block on the end of the flex hose. Therefor they use an extra long ( 1-1/8")banjo bolt.
The kit flex line has a much thinner banjo connection so the ford bolts screw in too far and hit the piston. An off the shelf 3/8" x 7/8" banjo bolt will work just fine. (way too much drama)

Tomorrow I will upload some more pictures after I change the line and vacuum bleed the system.
I will have to get a long piece of vacuum hose to temporarily connect the booster to the manifold fitting since all the vacuum fittings (2 speed rear, brakes etc) are on the firewall and the cab is off.
Then I can see what the peddle feels like.

Looking pretty good!