So creating the hoses with their kit really was not hard at all, and I could have done it with one kit and just ordering two extra banjo fittings as I had about 2 inches of hose left over from one kit once both hoses were made.
They have you wrap the hose where you will cut with some tape, cut it using a cut-off wheel or hacksaw. I used my Dremel with a new cut-off disc. Measure back an inch and cut-off the out plastic casing, then slip the nut over the bare stainless wire. This part was a little finicky as the wire starts to expand outward, especially if you mess with the end and getting the nut over it can be tricky as you try to press/squeeze the strands back smaller.
Now you DO want to expand the stainless covering a little to insert the brass ferrule. This goes on pretty hard and I found placing the ferrule onto the side of my work bench, the pushing the line into it while giving it some wiggles worked best. There is a lip on the inside top so keep pressing until the nylon inner hose bottoms out inside the ferrule.
Then just put the banjo end into the tube and tighten the nut up onto it. I found holding the banjo end with a large adjustabe and an 11mm wrench for the nut worked great. I thought I had a picture of that, but no dice. I also had some heat shrink tubing on hand to tidy up the install, and here is the finished product. I will say the brakes are way firmer now vs. my original, 45 year old hoses. I re-used the factory hose grommets and holder, though they are too big for this smaller hose. For the rear, I don't think it will matter, but for the fronts, I use a zip tie to act as a stop to keep the hose in the proper position, as close to factory looking routing as possible. You probably could tighten then up with a few wraps of tape before putting the rubber holder on, and maybe I'll do that later.