I am the second owner which I purchased in 2002. All maintenance record available since 2002. Front tired are two years old and rear are one year old, AllToyos. FlexArmor roof installed in 2023, Lifetime warranty that is transferrable. Front roof air is three years old. Under shed first 2 years and in garage since I have had it. Modified electrical system 15 years ago that allows 60 amps of service. Can run both roof air and microwave at same time during the summer. Annual generator maintenance. I am 79 years old and tired of maintaining it. Engine is ISB 5.9L Cummins, 24 valve 300HP, 675 FPT. The block is the more desirable #54 as opposed to the #53.