I have the cushions for the Campster
I recently purchased. They are in decent shape, still usable. The covers could use a wash but since I am going to reconfigure the set up I thought I would see if anyone on this site would like them.
They fit the long benches, are about 76" long, 2 are about 22' wide (seat) and 2 are about 15" wide (back). They are 4-5 inches thick and comfy. They would probably also work for Hunter's and Compact's. Or if you are really handy with foam and cutting it up. The covers are grayish.
I am in the SF Bay Area. PM me if interested.