Have you determined that there is indeed a market for your planned operation? Custom operating of any sort in my humble opinion is dependent on having large farms in the area that don't want to or can't hire on additional seasonal labor. The other type of operator serves the gentleman farmer operation. You know the guys. They have a few horses or a couple beefers and tried making their own hay for a summer or two and now don't for a myriad of reasons. Are you concentrating just on the baling or going whole hog to custom harvest? If you can put up a quality bale of hay and in doing so preserve feed value you should be able to find a market. What type of baling do you intend to get into? Large square, small, round?