The other method I'm considering is to fix the IWC and something like a fan blade to a second lid and just rotate the kettle on a lazy susan below it.
I'm probably going to cave and get the pump though (or the GreatBreweh
at $70). Automation like that would speed things up and let me clean up while the machinery handles the heavy work. Still need to get a proper propane burner for full boils so that might come first.