What honda models have the same gas tank as a 1977 Hondamatic 750?

I have a 1977 Hondamatic 750 and my tank is starting to rust. I was wondering if any cb honda tank of that year would work.What honda models have the same gas tank as a 1977 Hondamatic 750?Actually any CB750 tank from 1975 -1978 will fit.1979 might fit but that was the first year of the twin cam engine so I'm not shure