Don’t know but i gave my upholstery guy a set of 62 buckets with torn up covers and crumbling foam and he made some really nice orig pattern covers with his own foam. Came out really nice.
I just had him do a set for my 64 chevelle,which other than the cover pattern are same as cutlass… Abody seats. I bought quality pre-formed foam for it and quality covers and I like his work on my 62 Cutlass better.
So if you have a good upholstery guy i’d go that route. He did bitch about the 1” Tuck-and-Roll though.