I have two unopened (of course) packages of Kodak Microdol-X developer. They have an expiration date of 2006. I am not going to use them. (I've really gone off of using old stuff, but that's another thread ...)
I can get them into a medium size USPS Priority Mail box. I tried squeezing them into a smaller box, but, no.
So, the shipping and a bit more for APUG rounds out to $15.00.
USA only - it's not worth sending cross-borders. Sorry.