For my setup, I went with a floating concrete pad (4.5ft square, 2.75" thick) so that I can move it when I eventually buy a home.
So far, once I got the mount properly aligned and the dish up on it, I started finding loads of channels. I scanned in 91w first, using it as my southern sat. Then I was able to go both ways from there. Once I got to 133, I peaked the declination. I was able to go down to 43w.
I was hoping for the Alaskan Mux on 139w, but I am assuming it is not possible from Arkansas with an 8ft reflector?