In doing your prep research you may have missed these shocks - I'm giving these a try when I change out the Ford E450 OEM shocks on our 24 footer:
http://www.koni-na.com/uploads/KONI_E350450_Cons_PR.PDFKoni has offered these shocks for quite time for Super C and Class A motorhomes. They just this past spring introduced these for the Ford E350/E450 chassis. I had communicated with Koni on these before they announced them for the E450 because I was very interested. The technology sounded, for the E450, like the closest thing to the active shock systems used in the racing world.
