I am surprised you have not raised a major issue others have highlighted, that the dish is a MASSIVE energy hog in RV terms, where electricity is a premium when you are not hooked up to services where internet is usually also available, even if it is spotty.
2nd gen dish not so bad, it's about a 65W load if not in ice melt mode. The first gen is 85W to 150W depending on if heaters are on or not. But even so , yes, the cumulative kWh from a 65W load powered up for 1 month is a lot. Probably best handled on an RV that can mount multiple 360W class big pv panels on the roof.
