I found this pipe flow chart online and saved it for reference. It might help you to decide on your pressure regulator usage and where to place it. At 3/4" you might be pushing it at 25 psi at the end of your run. I bought an rv pressure regulator to reduce to 45/50 or so psi so I didn’t damage my equipment, but my run is only about 120 feet max. I bought one similar to number 10 on that list, I think at home depot.
Sprinkler Warehouse was helpful for me deciding what I wanted to buy from them after explaining my design specs. I ended up getting mostly stuff similar to this “Rain Bird HE-VAN High Efficiency Adjustable Nozzle 8 ft | HE-VAN8” because of the higher efficiency nozzles.
All that said I haven’t Installed my system yet to I really don’t know what I am doing either, just learning as I go.
This thread might be helpful to you as well.