Wow! That must be a lot of work. I have only known one person in real life to keep dairy sheep. I think the variety was Fresians, they were also good for their wool. Do you keep your sheep for dual purposes or only milk? Do you mind my asking why sheep and not goats?
I am recently learning to do things with their wool which is an awesome adventure.
I got the sheep because my husband wouldn’t let me have a cow. Lol. Sheep’s milk has about 2x the solids of goat or cows milk so you get about 2lbs of cheese per gallon instead of one. It also freezes well and will still make cheese after being frozen. Also sheep are supposed to be easier to keep contained than goats. My sheep are Icelandic x Freisian.