I think you need to be aggressive. Keep close tabs on extent of damage, be pushy.
Gotta ask what pressure were you carrying in the tires? Most likely it should have been at least 50 lbs. The reason I ask is that we recently bought an '05 Trail Cruiser that had serious blow out damage to one wheel well and minor damage to the other (I saw the damage before we bought it, I like to fix things). I asked the seller how much air he pumped his tires to and he said 35 lbs. That's the reason they blew. Probably was driving too fast too. I don't buy into the idea you have to replace tires every 3 or 4 years. Keep them inflated properly, don't overload the TT and don't drive over 65, will last for years. Been towing for 30 years, never a blow out. Tire companies trying to make money by scaring us with false info.