If your a going to make your own beer, why not make your own "Home Brew Mill"?
I made one mill out of a weight lifter's bar, all chrome and knurled. And, I just tried a tortilla press, it's 3"diameter un-knurled aluminum rollers seem to work better than the 1 1/4 knurled steel from the weight lifter bar (WLB)- the pros recommend 1 1/2" minimum. The WLB doesn't like to feed un-roasted barley, but eats the toasted stuff. So I use a block of wood as a pusher. The tortilla press will be lots higher volume. I use a drill motor on the hex nuts on the shafts, easier for me than hand cranking the freeby at the HBS. Tortilla press is from the swap meet, hecho en Mexico, $89 new, $20 with a broken handle that I don't need anyhow. Rollers adjust too. I'll need to build a hopper and a new base to feed into a bucket.
Have fun!