You could get a Phase III dish and a SWM SL3 LNB and make a portable tailgate / camping HD dish set-up. You can also use a Turbo HD dish.
I know a guy who uses a SWM LNB with a camper dish set-up hooked straight to a receiver without the power inserter for a couple of days here and there. Supposedly you are not supposed to do this as it could damage the IRD, he's been doing for a year or so now with no issues yet. Don't know if you can do this with a H25, he uses a H23.
See this thread:
http://www.satelliteguys.us/threads/283692-Phase-III-Dish-SL3-LNB-camping-dish