1966/67 Bucket Seat Metal Backs - Anyone restored them?

I recovered my old ones after removing the backing. It looked like lightweight trim vinyl that have been vacuum formed on and glued . I removed the vinyl and glue cleaned the panels really good and used my home built vacuum former to add new formed vinyl on to it using heat activated glue(it was expensive) next time I try it I'll just use Contact cement instead of the heat activated glue. they did come out pretty good though and still looked good 2 years after I had recovered them. They went with the 66 dart I sold, since I went to later model seats in my convertible.