All it needed was a tank rinse, the generator put on correctly, and the valve nut tightened. Of course, the gasket on the fuel cap is shot, so I used the temp new cap to test it out to see if it held pressure.
BTW, this is in way better shape mechanically than the Sears was!! I love the simplicity of the assembly.

The pump is in fantastic shape and well-oiled. No rust whatsoever in the tank! It fired right up.

Thanks for pointing me to this sweet little lantern (born date 6-51). Nice that something older than me still works flawlessly.
Hugs,
Ratkity