I'm not a pump guy, but what the heck! You are trying to put something together similar to a "rat rod", a conglomeration of items that didn't originally come as one into a new item. If anyone says anything tell them "It's art!"! Just make something that pleases you and have some fun with it. Good luck!

Regards, Jim

I collect gas pump salt and pepper shakers
and the plastic coin banks made by AVSCO.