Dish for Just One Sat?

In reading our fellow member's difficulty setting up a dish for camping in Arkansas, a question occurred to me that I have wondered about for some time. If I were only interested in receiving programming from one satellite location, say 61.5 for locals only or 129 for the majority of HD's only, could I use an original dish 300 antenna? They were so easy to set up back in the day and can be found at almost any flea market. If a DishPro LNB would be better, they are also readily...​