What size pump do I need?

Tried over in Newbie area with no response. I building my own EZ Cloner with a 5 gallons bucket and 8 netpot sites. My plan is to have 4 EZ Clone sprayers but need to know the size of pump to supply it. Ill be running a timer for 1 minute on 5 minutes off. I estimate about a 180GPH (runs ~1minute w/3 gallon reserve), will this produce enough force for the sprayers? I can always overkill it but thats added cost and more important temperature.

At 1 min on and 4 min off temperature gain isn't that big of a deal, I would go a bit overkill
as if you don't have enough power then it's gonna be a complete waste. I've run a ecoplus 396
that I got for 35 bucks with 6 heads and had some really good pressure.

Buy smallest one you can find and you dont have to shut it off just run it 24/7. Might want to think about using the collars that come with the commercial cloners that's what I use.