My understanding on a rebuild is that the end plate also gets milled. Mine showed minor wear on one side of the gears and when I asked the shop about it they said it was common and that milling the plate was part of the build to re-tighten tolerances.
I sent mine in to Egge and it came back with hot flow rate specs, 1.2gl per min, 42psi low, 50psi high........... whatever those pump speeds were I don't know.
$135