Got the Silverado repaired today. By my mechanic.
Replaced the last factory brake line with one made from NiCop, so that should be it for any brake line issues going forward.
This was one of the rear ones that hugged the rear axle.
Also had to replace the front left brake hose which had been rubbing against the freaking strut for some reason which wore a small hole in it.
Also replaced the power steering pressure line, which had a small hole in it.
Also, my new trailer hitch arrived today from etrailer, so replacing my old one will be the next task.