I am getting ready to change from DirecTV to Dish and do not want anymore more lag screws put into my flat roof. The 2 yr old DirecTv (slimline) mount already has a number of lags into my roof that I have finally gotten to not leak and is firmly stablized with 2 additional support struts. I cannot find an adapter online that will sip over the 2" OD mount so that the (1-5/8) Dish can mount onto. Stuffing a 1-5/8 mast piece into the DirecTV mast would probably work, but it seems like someone would have a nice 2" ID to 1-5/8 OD adapter (gee.. maybe a muffler shop??) Does such a thing exist for this purpose?