Sadly for everyone who reads this, I am not shy about puns and plays on words. Sorry, but not sorry.
After epoxying the rudder blade yesterday, I sanded it down again today and applied a coat of "pre-cote" to the mahogany. Soon it will have a second coat and then can be sanded smooth and painted properly in ivory. Baby steps for sure, but it's all I can accomplish with the time I have.
I also sanded back to bare wood and re-varnished the tiller. I got my hot little hands on a wire coat hanger to hang it from the rafters properly. Now I should not have that issue with runs again.
More coats await!