So, dead thread revival day!
I went ahead and pulled the trigger on some stock ‘70 Eliminator seats. The covers and foams are pretty chewed up, but the frames and hardware should clean up nicely enough for me to do Option 2.
I’m pretty sure WCCC has replacement foams and any necessary hardware, but now the search is on for a pair of nice, soft leather covers - styled as close as possible to my original black ‘70 Decor seats. These are 69s, but I like ‘em.
Also need a trusted upholsterer in the eastern Oklahoma/Northwest Arkansas area.