I advertise early in the spring, on craigslist or free-cycle and have been lucky to buy fresh goose eggs(as you see here) and turkey eggs, from under an hour away from my home. You can negotiate with the seller what price you will pay for a dozen eggs. Once you have established the contact, it is easy to make arrangements year after year for purchasing their unwanted eggs.
I also buy fresh "double-yolk" chicken eggs from the local Amish market; and I have purchased ostrich eggs from a local farm auction.
I ask the sellers to simply rinse and store the eggs in the fridge until I arrive. One time a seller scrubbed the eggs clean with a brillo pad! This could damage the cuticle of the egg and scratch the surface, spoiling it. So a gentle note to the seller is all that is needed.
DISCLAIMER: AS ALWAYS BE CAREFUL/CAUTIOUS WHEN BUYING OR TRADING ITEMS FROM CRAIGSLIST!