From a guy who grew up on a farm.........how often you will be using it and for the reasons you mention........you won't need the extra cost of 4WD unless you plan on being in wet ground. Though we had a small farm compared to most of today's farms, we never needed a 4WD. At least for farming purposes if it was that wet, we had no business being out. Of course the type of soil and location will help dictate that.

JD, Case International, Kubota, Ford, any of them should fill your needs.