After digging into available mods for the truck, and a couple trips to SoCal and back, while it's clear this truck is in phenomenal running condition, I came to the conclusion that I'd definitely like a bit more power while towing (can't really do much to the 6.5 without risking blowing it up), and dammit ... I just want more LOW.
Picked up a '97 454 gasser dually 4x2 with far lower miles in nice shape today. I was kind of looking forward to the challenge of converting the SRW to the spec I had in mind, but this will be a far easier buildout.