So sorry for you. I have seen many serious issues like this, and rethinking keeping/taking my truck whenever it comes in. I only have one vehicle so it needs to be a great performer.
I think addressing the connection area where rust prevents getting to the tire is biggest issue. Might be a good idea to have that area addressed with WD-40 yearly. Last flat tire I had the tow truck guy could not loosen the connection bolt.
I will be losing my spray bed liner and paying more for a dropin with new pricing and configurations. Hope the 23 comes in. How will they be compensating those with 23 orders if they roll into a 24?