I decided to move it yesterday so that is what I was waiting for lol. I put the eggbox 3 1/2 inches off the floor and will add a lip. The dimensions are 4' x 4' and I basically followed the Purina plans.
By moving it, the chickens will have a bigger run which will hopefully keep them happy. I always wanted to do this but I held off for years because I wanted to do it right.