The basic SAS kit is about $1800..
then you add shocks and coils,
If you are going to drive it on the street, you add the steering/shaft, sway bar stuff....and a the new rear leaf kit and stuff to match the front height, etc...
So - around $4,300-4,500 to Calmini for that stuff.
Add to that, the D44 off the '80-85 waggy, and the new gears so you match the front, and I think about $5,000 dollars for the 5" lift is about right for budgetary purposes, as far as parts alone go.
If you have to pay for the labor/welding etc...YMMV.
So, for all intents and purposes, the Calmini 5" lift is about $5 Grand to do full boat....you can shave hundreds off by eliminating capabilities tied to the accessories, etc.
This results in ending up with what appears to be a killer live axle set-up and a 5" lift.
About a grand per inch.