Dave Page in Seattle rebuilt a pair of Meindles for me in 2019. Very similar conditions with mine as yours. Did a fantastic job but it is fairly expensive. Think I ended up paying about $150 for the job but I gotta tell you they are better than new and aren’t going to rot out again. They are Meindle’s authorized repair station in the US.

http://www.davepagecobbler.com/

John McCain is my war hero.