mark michaels will sell
you a pair for around 40 bucks, who knows you may be able to talk him down a buck or two. i thought 40 was a bit high myself so i never bought them even though i have a bunch of frigidaires that use bellows. i have always used channel locks to get the bellows clamps off and 4 precisely cut wooden dowel rods placed at 90 degree increments around tub to close those clamps when reassembling.
i can dig up mark's e mail address if anyone is interested. think he goes by "simplicity" on this site.