Unless you can find a used tractor with some attachments, A new tractor without attachments cost more than a new 4 wheel drive pick up truck. My dh was looking at the new kubota, and I told him if he could drive it to work, he could buy it.....work is 20 miles away!
I think English chick is right about asking a local farmer to to harvest the hay, and if you want to keep it , you could probably make arrangements on a price to pay him, my mil used to have someone put up her hay, and she paid about half of what hay was going for.
We bought a 1962 ford tractor for around $2,000, and went to farm auctions, and bought a brush hog, a post hole digger, a plow, a blade,and a shovel. we also bought a new tiller.....all in all we probably spent over $4,000 on everything including the tractor. and still can't put up hay..we need to find an old square baler and a rake to do that.