The story I got was Smith and Edwards, surplus store there, had a trailer full so they had been stored inside. I called out there a few years ago, 60 bucks each but they won't ship. I would still want a proof of life photo, I don't know anyone in that area and it's a long drive.
I called Smith and Edwards and they said they haven't had any Gama Goat tires in years and years.
I just called Corker Tire.......they have none of the 1100 x 18 DUKW tires in stock anywhere. They order their tires from a manufacture that makes them for them using the molds that Corker owns. The tires are made in Vietnam and currently they have none on order to be made. Whenever some are made, they are likely 90 days out depending on shipping from SE Asia. Then they arrive stateside and depending on shipping costs at that time, they will be able to quote you a price.
Since they have none in production and the DUKW tires are listed as 10 or 12 ply depending on which catalog they are looking at. I asked what it would take to have the manufacture make them in 6 ply instead. He said likely not, but maybe possible if there was a run of "maybe 50" or so. He said he would ask. He also said once delivered stateside, when someone wants to make their purchase, they could have the tires directed to other dealer location points and ease the pain a little on shipping it if get's them closer to a buyer.
So I ordered a full set........standing by.