Great problem to have is a bunch of old pumps! To start off with, what you have pictured is fairly common, except for the center pump. It is a Tokheim 850 and while they are not really rare, yours is because it is 1/2 of a twin pump! Very hard piece to find. I'm not really interested in buying gas pumps that far away from me, but if you ever need help with current valuation on a pump, feel free to contact me via email.
Old gas pumps vary a lot in value, depending on condition, rarity, location, etc.! Being stored inside is a major plus, and depending on how many you have, it could be a rather significant treasure trove! Good luck!