General purpose pumps
Thanks to all for the suggestions. In keeping with my desire to minimize electrical loads, I will go with the hand pump. The idea of simply using the engine is one I had not thought of, but I want to pump the fuel to a container in the cockpit so that it will be out of the way, and it seems complicated to run hoses to the cockpit from the engine or fuel tank. The old tank is 20 gallons, and it is more than half full, so I don''t want to have to carry it through the companionway to the cockpit.