Couple of updates to posts...
My profile needed updated. We took our new 1905RLT out one time. Immediately figured out that wasn't going to work. Called my dealer Monday morning and told them I needed a bigger one.
went in the following Saturday, dropped off the 19' and picked up a 2603WS. THe dealer took the old one and applied full price over to the new one. We absolutely love it and the size is perfect.
As for my tires, I don't have a monitoring system on it. But may have to consider one now. I'm not sure how far I drive on the flat, but it couldn't been too far. But, at 65mph a quarter mile or more could have been enough to do this much damage.
I've had a heck of a time getting the plumbing parts, but found them at Camping World in Indianapolis. I'm sitting at a tire store now while they mount the new tire. I already told them I'd be back next week to swap out the other three!
Should be back in business in a few hours.