I want to install a Hopper 3 and wireless Joey setup on my RV. I have a Wally system now, but I want to use the wireless feature in the Hopper/Joey setup to get high def all over the coach. The RV is a little older so I don't have HDMI and want to preserve the coax for OTA and RV park cable service. So here is my question: Where is a good source to purchase the equipment from? Dish won't work because they are setup for home install (need an address). Any other advice on installing this setup is very much appreciated. I have just had enough with the distorted screen resolutions and poor pictures. I have a Dish Winegard traveler satellite dish.