Enjoy. Sweet deal on the equipment and on the property in general. When we moved into a similar situation 36 years ago we made 33 trips to the landfill with junk left behind.
Those older Fords can often go forever with few problems; yours sound like a few seals need replacing which is a lot less costly than upgrading to newer stuff, but I think in a while you're going to know just what will work for your needs.
I love your woods; looks like many years of reduced heat bills, and possibly a little timber.
I'm going to be in a situation similar to your seller's in a few years ( hopefully with the same wife ) and I constantly wonder about the next owners of this place. Sure they're going to snicker about some of the a** backwards things I've done over the years, but it would be worthwhile to have me consult on this place. I know things like which wells are good, and which ones stink; or which fields or roads can do what and when. I could share a lot of things I've learned the hard way to prevent them from making some costly mistakes but they still have to and no doubt will make some of their own errors.
We never really own land, we're merely stewards for the next generation.