Yeti, While I don't have any experience with C&O Marine I understand these guys have been doing restorations on boats for years. They may be able to assist you in your endeavor. You may even consider replacing your seats with new equipment offered at many marine distributors.
C&O Marine:
http://www.teamcandomarine.com/available-services/
New Replacements:
https://www.overtons.com/Boating-Mar...s/Bucket-Seats
Cabelas:
http://www.cabelas.com/catalog/brows...CQ_pagesize=60