Never done a visible pump most are aroung 10ft with a globe. But if you want to try and restore one, GO FOR IT! I have a ton of fun restoring this stuff, i am finishing an old lubster tomorrow. I like 50's computer pumps as they are easy to do. I strip the pump guts out and discard minus the veeder root. I use a cheaper Divilbiss Finishline spray gun with a few nozzles. I use 1.3, 1.5. and 1.8 nozzles on this gun depending on the paint or primer i am shooting. I have had good luck with it and for 200 bucks you can get one. Use good paint that is PPG and test spray something before hand. Use a good two part primer if going outside. For pumps i keep i do the insides as well like the frame etc. You can save a ton of $$$$ by doing it yourself. Buy a cheap sandblasted from Lowes or Home Depot and get rid of any rust and old paint. Are for what these are worth others will have to chime in as they are outside my field of expertise.
Also welcome to OG!
Dan