I use my father's fully restored 1949 8N to cut his 5 acres with a woods finishing mower, and when the 8N was down, I used my 2520 with the same mower. No comparison, the 2520 worked it much better. I can take a slow sharp turn without having to slow the blade speed (single clutch on 8N), power steering, etc. The 8N is much heavier, so will tow the ground implements better as previously noted. You can approach this by adding weight. I love fact I now only have one tractor to maintain, and can easily switch implements. Plus, the 8N is can be a bit tempermental if you need to stop and restart (i.e. need to add gas, or take a break) as it hates to hot start. I don't think you'll go wrong with the 2320. See if the dealer will let you try it out. The bush hog isn't likely going to be a problem, only the disc, if that.