1969 Race Dart w/ 426 Hemi- garaged for 45+ years

I posted this in the seat thread. Drivers seat is brittle and has a crack. What is the best option to restore the seats? A person responded and told me about Gary Ball interiors.

https://www.forabodiesonly.com/mopar/threads/correct-super-stock-seats.292406/page-4#post-1974281081
Back in the day it was popular to put Dodge A100 van seats in Race cars