I'm thinking of replacing me current dish with a Fortec 6' with polar mount. I see a Sadoun listing for a 3" polar mount. However, the pole I have in the ground is a 3 1/2" pole used to mount my Orbitron (now damaged beyond repair - see avatar). Question: Is there any kind of 3" to 3 1/2" adapter (reducer?) I can use to mount the Fortec polar mount to a 3 1/2" pole?