After replacing, the ride height and quality did not change (measured before and after on a flat concrete surface) and several Pinzgauer owners rode in the truck to compare it and no one could tell, so it appears that the springs are in great shape. Used (and rusty) ones at SAV run $185 each, plus shipping. Expedition Imports wants $139.15 each for similarly used/rusty condition springs. New - SAV gets $262.97 each (if available), and EI gets $244.66 each. I think a reasonable price would be $300 FOR THE PAIR plus shipping. For shipping info: my friend has them in a NW suburb of Chicago. PM me and we can figure out shipping from his place to you.
Edited price : see below