as a sprinkler guy, the design is a huge part of it. Execution is also Important.
Believe it or not most people screw up the design and the scheduling.
You have the time to figure out the design.
You are in the right place.
Remember head to head coverage.
Water pressure is greatest at the supply.
Friction Loss through everything the water touches from the meter to the head.
Backflow Prevention
Design pressure is the pressure your sprinkler heads require to operate plus any friction loss.
Good Luck
I know you can do it.