But it's all fixable, you just need to find someone with a brain that can weld and do "stuff".
It's not as daunting as it sounds. I did the work in a week under scorching hell hot conditions, other wise, in 3 10 hour days this repair could of been done.
IF you can get some warranty work done, great. Otherwise, go find a good welding shop that has experience doing this type of repair. This is not an uncommon repair. Until then park it.
In the end, I have a much stronger 5th wheel hitch and front beam. The materials used in my 2009 Sierra was shockingly thin 3/32ths thick 2x5 box metal. I replaced that with a 3/16th thick metal that was quite a bit heavier.
Labor is the big cost here as everything in the front bedroom needs to be disassembled and the floor pulled up. You can read about my experience here. Good luck.
https://www.5thwheelforums.com/forum...ead.php?t=4617