Been waiting to see a good seat foam become available for these models......
I was surprised to see a new one (reproduction) turn up on eBay with the text that it was from "The Seat Factory"....
It looks like the DC Plastics listed one, or at least the same manufacturer as the '85 listing on the DC site..
The eBay seller may be OK to deal with, but has any one a link to the "Seat Factory" directly ... or found a site listing the 86-878 seat foam?