Seeing that your tires are only five years old, you should be able to get about 50K miles out of them and/or seven years. Is it the guy selling you the tires the one telling you that you need to replace them? Take your motorhome to a different tire dealer and get a second option.
Also the mechanic that services my car also told me that he thought the tires look ok. I drove the motorhome around to him to get his opinion as well after camping world gave me that news of starting to dry rot as well as my RV service said they should be ok. Now I will have to make a decision on way or the other and appreciate everyone's input.
After everyone's advice, I think I will get another season out of them. Even my son next door, who check them out ,said the same thing. I will be getting the MH inspected this April before my trip to Kentucky and I can get another opinion.
It is always good in inquire and post on this forum as it is always good advice. Looking forward to the Spring. thanks to all.