Got your IM, I'll just reply here... I'm about as bad as any Country music song - I'll never get rid of my dog or my truck. Thought about getting a new/bigger one, but wow, they're proud of new F450/550's. And the F450's do not offer any more GVW than an F350, just more GCVW/towing.
My truck has never left me stuck. The old trusty 7.3L with 80k miles on it. But i have done a lot to it to make it better suited for a huge camper, a lot of which I did only after I got my Eagle Cap.
I am not a fan of air bags, so I have just springs and Torklift StableLoads. Bags can leak or pop, so that's why. So pretty much like my sig says -- did Rancho 9000's, Roadmaster sway bars F&R. Dropped a Jasper MonsterBox tranny in years ago to avoid the factory's weakest link in the 7.3's. I run BFG All-Terrains but have been gicing serious thought to 19.5's.
