Well based on your zip there is not HD LIL yet for your DMA, doing the 5LNB would save time and another trip out, but your locals are on DirecTV 1 at 72.5°w and the core programming is on DirecTV 1R/4S/8 at 101°W. So you will get more than one dish.
Did you order any HD services? If so, maybe you will get the PhaseIII and an added dish to get your locals. That would be your best bet in my opinion.