Before this dies (and I really do think it needs to die!), here's an idea for PJ;

Make a visible replica out of wood. Base it on a six or eight sided pump (American, Fry, etc.), the base can be wood, the skins can be 1" thick lumber with compund mitres, make a hail guard out of aluminum expanded metal, forget a cylinder, use 3/8" all thread for the cylinder bolts, order a repro dome (they're affordable), do a super job priming the completed pump, brush paint about three coats of oil based enamel for the finish. In a few years when the finish starts looking crappy you can repaint it.
I believe this pump could be built fairly cheap, you may even have enough money left over to put a repro globe on it.
This is not my idea of a pump, being the purist I am but it may be just what you're looking for.
Just a thought.

Neal