You would think for what our DRV's cost, the extra cost would be a no brainer for complimenting your quality of your unit. Running steel tubing inside the frame and connect short flexible hoses outside like your car is for brake lines. All hoses would be accessible from outside the frame. And then on the hoses inside the frame (like slide cylinders) were installed with steel braided hoses to minimize ever having any issues. Another pet peeve I have is the final delivery where the workers on the line don't police there trash when they complete their task. It is like they don't take pride in the work. It would be like a complete house where they throw all the trash in closets and attic. You see saw dust, shavings, pieces of plastic, wire, tape, screws, normal trash when doing a project. They just leave it behind like we are living in Mexico. Anyway enough of the complaining...