I can't add much new to what has been already posted here... all pretty sound advice regarding your tractor options and your sanity. But I would say this, speaking from my own experience over the past few years...
It sounds like you are taking 20 acres that has kind of gone to seed and trying to bring it into some state of "civilization"... either to live on, use for recreation, etc. Good for you... that's a great project... but you will probably find it's going to take more work than you anticipate. Unless you aren't doing anything else with your life, it will take longer than planned. So if at all possible, get yourself some equipment that has more capability than the minimum, because you are probably going to need it. If you have minimal equipment, the inevitable unexpected things are going to become real obstacles. Best of luck... you've got quite an adventure ahead!
It sounds like you are taking 20 acres that has kind of gone to seed and trying to bring it into some state of "civilization"... either to live on, use for recreation, etc. Good for you... that's a great project... but you will probably find it's going to take more work than you anticipate. Unless you aren't doing anything else with your life, it will take longer than planned. So if at all possible, get yourself some equipment that has more capability than the minimum, because you are probably going to need it. If you have minimal equipment, the inevitable unexpected things are going to become real obstacles. Best of luck... you've got quite an adventure ahead!