Fuel Hoses Lines/piping And Fittings problems of the 2004 Chevrolet Silverado 1500

Leaving my property I stopped to close gate. I smelled gas, looked under at fuel tank and fuel line was spraying fuel onto muffler. I removed truck bed and found animal (squirrel) had chewed hole in plastic pressure fuel line at tank connection. Plastic not appropriate for high pressure fuel line. I have pictures of damaged line.

After returning to the truck from an errand I started the engine and, upon depressing the brake pedal to put the vehicle in gear, the brake pedal went to the floor. No warning lamps of any sort were illuminated prior to the brake pedal going to the floor. Pumping of the pedal did not produce any resistance. After a few minutes the brake fluid level warning lamp came on. Brake fluid was added but did not result in any resistance from the pedal. Had to have the truck towed home where it then sat over-night. The next morning I observed a large wet spot on the driveway just below the driver’s side door. I looked underneath and saw that all of the brake lines going into or out of the abs module were severely corroded and at least one had obviously been leaking brake fluid. The truck was towed to a Chevrolet dealer. I arrived as they were raising the truck on a lift. Evidently they also added some brake fluid because quite a large puddle was forming on the shop floor below where the brake lines enter the abs module. The technician, the service consultant, and I all observed the rusted brake lines, and fluid was literally dripping from one that had obviously burst. The dealer advised that gm does not make replacement steel brake lines so all the lines would need to be hand fabricated by the technician. Dealer also advised that the abs module may have to be replaced because of how corroded the brake line fittings are (fittings are steel, abs module is aluminum) where they screw into the module. We also observed that the fuel lines were severely corroded. I have owned many vehicles far older and with far more mileage and have never had to replace the steel brake lines. I believe the design is flawed (the routing and placement of lines and module) or the brake line material (steel, instead of stainless steel) is insufficient. I have photos and the old parts.