Older farmers? Farmall H plow (for soil) and other implements?

I am a bit confused on what plow to get for my farmall h. It has no 3ph, just as it was originally. I understand that you normally need a plow with wheels in this case? I see a farmall plow for sale but it has no wheels. Am I supposed to put the wheels somewhere? I also see pictures of people plowing with other contraptions without wheels. Are wheels essential? Also, does my plow have to be exactly 2 14 inch furrows in order to get the wheel going in the previous lines groove?