Are you saying these heads use 10 gallons per minute? I'm not sure what gpms means. That's a pretty big head.
You should get ahold of a friction loss chart and figure your gallon per minute usage per zone and size the pipe accordingally. Use the words "Friction loss chart" in Google.
It will be useful to know what this Goulds pump can do with a 15 foot lift at around 40 psi. There are medium and high head pumps, and they both pump differently.