The base looks repairable to me. As long as there are no chunks missing, you should be OK. If you don't want to go that way, someone should have a base available. Not sure how the repops fit? Sometimes they aren't worth the hassle.
TOM--Email me a close-up of the globe holder area. It might be that your pump had a stationlighter on top and someone just cut the harp section of it off! Kinda looks that way?
Everything Cities Service
Specializing in old Gas Pumps