Thank you, Ray! That was exactly the type of information we've been looking for.
The military park thing isn't going to happen. It turns out that its easier to medically separate you these days and completely cut you out after 17 years. Enough about that...
About the maintenance intervals... were the ones specified by the factory adequate, or did you have to make your own based on what you were doing (greasing, oil, tranny, axles, and coolant)?
As it turns out, we are sold on the 2009-2012 cyclone 3950 and will be buying one outright along with a capable truck, but for the purpose of this post, the type of terrain we'll be covering will be confined to the coastal regions of Texas, Louisiana, and possibly Mississippi. So, pretty much... flat and if all goes well, maybe less than 5,000 miles per year on the trailer, and at worst 25,000 per year on the truck (Dodge 3500).