Given the size of your property, I would recommend something like my John Deere 3005. I find it to be a good mix between smaller size, 4 wheel drive, and has sufficient power and full range of 3 point/PTO attachment options (i.e. front loader, back hoe, 5 ft mower, chipper/shredder, cement mixer, etc....)
If cost is an issue, You could also look for an older tractor such as a Ford 2N, 8N, or 9N. These are getting hard to locate since many were bought up and taken to Mexico over the last 35 years. They often go for $2K to $3.5K. Plenty rugged, and 3 point hitch items fit. You might have to search for a front end loader to fit them. Also, make sure the one you buy has a PTO; quite a few did not have PTO.