Try RV satellite installers as they dump that equipment, you might get a hit.
If your receiver is SD only then be advised that SD likely has a limited future. But apparently no one including DTV really knows.
BTY I was satisfied with my SD dish until I couldn't get the winter olympics in OR. Found out there are various regions in the US where SD is not transmitted and a HD receiver/dish is required even if using a SD TV.
2009 Holiday Rambler 42' Scepter with ISL 400 Cummins
750 Watts Solar Morningstar MPPT 60 Controller
2014 Grand Cherokee Overland
Bob