Doesn't give your location - that makes a huge difference. Best thing is to talk to farmers in the area to gain knowledge as to what works. Three colleagues I worked with had about the same amount of land that you have, also use their land for pheasants and other hunting, but share crop their land because of the equipment investment to do the job right. They are Northeast Nebraska, Northwest Iowa, and Southeast South Dakota, all primarily corn. Case IH and Allis-Chalmers/Deutz-Allis/Gleaner, the farm equipment companies for whom I worked, did their field testing by supplying combines to custom harvesters or very large farmers. I got to travel with those guys from Texas to Montana, then Illinois to Mississippi. One thing they all liked to do when the crop was green or the weather was bad was sit in coffee shops and talk shop. I learned things like guys who moved from the south to the upper midwest tried the same farming practices they were accustomed to, went broke. That wasn't always the case. Some who moved from one area to another found the opposite. You really should get acquainted with farmers in the area to get an idea. Even things like a planter - you might be able to get a great deal on a 36" row spacing planter for example and then find that none of the custom cutters in the area can handle that spacing and you're screwed.