Honestly, I think ALL of us are putting the cart before the horse. Step #1; well step 1b (step 1a is getting 100% of same page with wife/family); is to get a good resolution 24x36" map/aerial/Google earth map, and Planning out what you want. Then, step 1c is meeting with some knowledgeable local experts, discussing options and putting a plan together. I dont Only mean a plan of action, also a physical blue print (not necessarily engineered, but you might be able to overlay a flood plan map, or soil map on your aerial, try to have things at a relatively accurate scale). Where the fields will go; shape, size, direction, where the drainage areas are; where the infrastructure (access, power, equipment sheds, silos, fueling, home, fencing) goes. Winging this part could (probably will) cause you problems for generations later. If you need ponds to control water during wet times, this should be incorporated into your watering plan. You don't want the ditch plan, or barns to fall right where your perfect home site is. You don't want to have to drive though your best field to get to another field.
Once this step is done; then we get to "mobilization" or actually getting stuff together to start the work.