2 Separate Blowouts on RV Yesterday. Learned Important Lesson on Tires

Good part is you were able to get tires and get home. My Brother has been stranded now for a week and may have to leave his diesel pusher 1000 miles from home and fly back. Some weird Michelin 22.5" tire that there has been none in stock for over a year.
My chopper was in need of a new tire. 250/40-18. Called a shop some racer friends use. He called his warehouse. Took them a couple of days to find the only one in their inventory. What your brother is going thru is believable..at least to me.