Mike, if you decide to go with custom AC lines, these guys are really good, http://www.austinrebuildersinc.com/. They did my lines when I went with the vortec conversion.
Just saw this post...
I had the privilege of riding on the passenger seat in Big Red last year at the Roundup. This is a nice truck!
Look forward to seeing the progress and meeting you when you get back.
Stay safe & thanks for serving!
Luis (aka Meatloaf)