Gilbert- well my intention was to get her back on the road and once I felt no major item was about to break on me- that I would go back to airbags since all of the bits are still in place. I was going to buy bags and then rebuild each part of the system to make sure everything works before I install the bags. Have not figured out the jury-rigged bypass wiring which is a mess of single wires ending in fuses- but when I get to that I will ask the forum what they think is going one with the mess. Too much debate about springs/bags for me to understand the fine points unless I drive one myself. The spring on it right now are pretty floaty-- my 2005 Astro Van is way more precise in turns and way better damped. Could be the current dampers are not well matched to springs that are installed.
Printing out the codes and instructions seem like the path I will need to go. Wonder what the instruction are if you buy a used one- such as the one Billy may sell?
Its heavy, and was designed to be on air springs not coils. Possibly shot dampers won't be helping any, but most of those who've experienced both say there is a noticeable difference between air and coils, with air being far superior ride wise and more stable (after all it can adjust to give the right sort of ride for the conditions its set to/being used in).
Your unlikely to find anyone on here in favour of coils - look at the title banner if you haven't seen it already.
If you buy a used one with the codes already unlocked you wouldn't need to register it as it would be already registered, probabbly worth confirming with the seller if they can give you access to the portal somehow if you need to add codes for any reason, or update the firmware etc. Might be worth checking with blackbox solutions to be on the safe side if your not sure.