Well, after a 2 day battle, I got the car running. However, there is a problem. My efforts to desludge the gas tank must have failed, as the fuel pump was so sludged up it would not work. I disassembled it, and scraped the gunk out of it, and got it working again. But the fuel filter I put on between the pump and the carb is looking mighty dirty already. Rats.
So, here is what I am going to do. A fuel filter before the pump and after the pump, and keep spares in the car. See if I can "wait out" whatever yuck is still in the tank. This should be enough for me to get it running correctly and drive it a bit. Then I can decide if I need to pull the tank again.
I might be able to drain the tank as well. That might be a better option after I drive it a bit and get it all in solution.