The only drawback that I see to a 2wd tractor when it comes to haying is not in the baling/rolling, but in the feeding. In the summer, I never need 4wd on my tractor to roll hay - after all, it's gotta be reasonably dry to make hay anyway. However, when I feed hay in the winter, I usually have to deal with mud. We're in the middle of the country, so we don't get too much freezing weather, so I can't just them out when the ground is frozen. A bigger 2wd tractor can probably still manage to set out rolls even in mud, it just probably makes it more of a pain.
If this is just an additional tractor for haying, and another tractor is available for setting out rolls, then 2wd should be fine, and cheaper. And if most of the bales are small square (which I think is what the OP said he was going to do), then it's kind of a moot point.
Good luck and take care.
If this is just an additional tractor for haying, and another tractor is available for setting out rolls, then 2wd should be fine, and cheaper. And if most of the bales are small square (which I think is what the OP said he was going to do), then it's kind of a moot point.
Good luck and take care.