Been by any of the local 4x4 or truck chassis shops? They sometimes have take off pallets loaded with stock springs,some used and others with like no miles on them.
Yea, I've called probably 8 or 10 4x4 shops, a lot of them throw the old springs in a metal recycling bin that gets picked up by a company and taken away.
I found a set in Virginia, but they will be $215 after shipping!!! I don't think thats a good price for springs with 105k miles on them.