3 or 4 acres is enough room. I wish I could give you a good estimate on food, but I never really took care of those matter, but I'm thinking about 20 a week. If you are looking at getting a younger horse bake sure that he has already been broken (meaning used to a saddle). If not then an older horse if fine and usually less expensive. Bubba Pal was several years old when my dad bought him for me.