These look like fairly nice pumps but as you have listed they have a lot of problems. Most of the parts that are missing are not reproduced and are very hard to find. You could use what you have to have replacements re-casted. If you look close at the clearance between the casting and the glass cylinder you will notice it is very tight. This make removing the cylinder very very hard to do without breaking the glass. Looks like one cylinder has been replaced, so it should come out without any problem. I have never seen a locking device on the opposite side where the pump shaft comes out to the handle, like I see on the red and blue pump. I think someone haded that to the pump. A lot of collectors like the Rush stove pipe so that's in your favor. Now that they are not in original condition I would restore them if they were mine. Without seeing them in person, I'm going to figure one good cylinder and two pumps with missing parts at $2,500 to $2,800. One with fewer missing parts is worth more than the other.
