Ok all those with hobby farms we need your thoughts on what size and kind of tractor we need - we just moved onto 22 very dry and unloved in the past acres- we hav no irrigation yep none - we need to dig ditches for farm faucets, plant trees, lots of landscaping, rock retaining wall, fix fences--we hav no animals yet but plan on a few cows ducks goat and sheep- ok what tractor do we need??