The suspension upgrade is complete.
I scored a set of 4 Bilstein 5100's and OME 887 Coils new from a private seller in Texas for $440. Then I picked up some OME HD Dakar leaf springs,EL096R, with the OME Add-a-Leaf EL46XL.
I did a bunch of research on how to configure the suspension for the camper, which weighs 850lbs empty. With water and gear, I'm probably over the GVWR. Whatever. I figured some beefy suspension upgrades would take care of that, and it has. I read on this forum that people have installed the same leaf package as I have AND airbags. Seems to me that HD springs with the AAL and airbags is overkill. I've discovered that I probably didn't even need to install the Add-a-Leaf. OME HD Dakar leaf springs alone would handle the load. I may remove the AAL in the future, so the truck drives better without the camper. Put them up for sale here.
The brake lines did not need to be extended nor was there a problem with the E-Brake line and I didn't have to install a carrier bearing drop kit. I tried to reuse the stock bushings. The truck has 23k on it. The front bushings came out easy enough but it was next to impossible to get the rear out without destroying them. My advice, buy a new set of bushings along with a set of longer U-bolts.