ASSUMing all you've written is true (I only write this because this is the internet)-
0. You are completely nuts - anyone who wants to work and not let the government take care of them is nuts
1. Form a relationship with someone who has upper-body strength and knows about tractors - this will be needed for wrestling attachments on and off also.
2. Check the threads here such as http://www.tractorbynet.com/forums/kubota-buying-pricing/141051-need-some-help-choosing-tractor.html
3. Read as much as possible here
4. Check all your local tractor dealers - unless you luck out in #1 you'll need a great dealer for support
5. Check farm auctions in your area - lots of stuff is going CHEAP and if you've done 1 thru 4 above you should be able to jump on something.
6. Don't believe all the "orange versus red" "green vs blue" "mahindra vs Yanmar" wars here. A lot will rely on your local dealer/maintenance.
Good luck and welcome.
Thanks, Newbury
About #1: the two men who rent now (one does the cropping on shares, the other has feeders on pad/pasture) are farming partners, live nearby, and are already very helpful. Both have been great about trying to educate me, giving advice about what to do with certain areas, coming to help when I need it (pulling me out if I'm stuck in snow, helping me transport a piece of equipment I can use but can't get from point a to point b, etc.) They've also given me the names of $8/hr kids with muscle to hire in on as-needed basis (which I've done a few times).
They're both great guys, and I think they're probably the only reason things are going as well as they are on the farm right now. The last thing I want to do is get myself into a situation where I need to call on them to "come help me with this thing" any *more* than I already have to... the idea is to reduce that.
One of them has also given me advice on what sort of tractor i might want, but --again-- rather than drive him crazy bringing it up every time I see him, I'm trying to learn about it on my own (hence this forum). What's been recommended to me is (I think) something 70-90 hp with easy hitch system and hydrostatic drive (???--see? I need to keep reading....)