1970 Dart Swinger 340 bucket seat HELP needed

If this helps, the 70 bucket is a 1 year only seat.
They used the same seat in a 70 340 Dart as a 70 Hemi Cuda, and I believe the B body aswell.
Just different upholstery.
So in theory, seat foam out of a 70 Cuda should work.
Im thinking the 70 Duster Demon should work as well.
Call Legendary and see what they have to say.