Hello Mr. Jolly. I recently acquired your trucks older sibling. lol I've got a '94 ecsb, also white and Z-71. I have to say that I"m gonna steal some of your mods. You've done some of the things that I'd been considering, and have definitely pushed me. Your truck looks fantastic.
As for the brake line question that you posed with the hydro-boost pictures, I'd recommend a trip under your truck and looking at the lines running up behind your gas tank. I'm the third owner of mine, and it's been BABIED. I had a brake line rust through and start leaking. The lines were perfect from the master to the gas tank, and they looked fine from the gas tank back the rubber line. It was just the section hidden by the tank. The fuel lines look like poop, too. I'm guessing that it's just where the lines are "protected" from when the truck would get washed.
Also, I'd like to say thank you for serving. (I'm assuming, here, since you said you were in Afghanistan that you're military.) I appreciate what you do.