If you're mechanically inclined, the compacts of yesterdecade are still out there. Popular brands like Ford or Massey Ferguson have amazingly good supply chain for 50 year old models. I run my hobby farm with a 1975 MF135, and I just sold a 1947 Massey Harris Pony that ran like a top doing pasture/arena dragging duties. I've put a ton of hours on the 135 and only done basic maintenance like replacing a few hydraulic lines and changing fluids.
Can you share more about your hobby farm? I would love to learn more about how you got into that? My family had a small farm growing up and my parents are still actively working on the farm everyday and I would like to take that up at some point. So curious to hear what you farm and how much involved you are in the process.