You should be able to find one a bit larger for free or very little in your area that is not being used. You could also post an ad in the local paper offering to buy an unused big dish. Ideally you would want C and Ku lnbs, 24"
actuator and at least 8.5' mesh dish.
If possible get the pole. You could either use a
VBox sold here at
Sadouns to drive the actuator and a Pansat receiver which would control the servo motor or buy a Fortec receiver here and a 4DTV receiver. Slave the Fortec to the Motorola receiver. Move and control the dish/servo motor with the 4DTV receiver.