[cericd]

Not sure if you've seen these but there is some good info on recreating/installing the seat springs in factory seats. I've never looked into building a custom seat from an original one.

https://67-72chevytrucks.com/vboard/...d.php?t=655352

https://www.67-72chevytrucks.com/vbo...d.php?t=711349

https://67-72chevytrucks.com/vboard/...d.php?t=832186

https://67-72chevytrucks.com/vboard/...d.php?t=836010

Edgewire Clip Pliers (recommended on forum)

Music Wire (recommended by GrumpyOldMan) - for recreating original springs