Nice job and a good idea for a new goal. Finding test equipment like meters, chargers, gauges, and analyzers are a lot more abundent then these sometime over priced pumps. Lets face it, look what they ask for on items like tire stands, porcelain signs, towel boxes etc. oil cans, its crazy! What you might start doing now is still relative to the gas station theme, and one day your collection could pay off. I enjoy doing my pumps and dispensers but presently Im restoring a 1940's Western electric phone booth (pay phone included)I feel it has a place also to gas stations and days of old. Roger