Dont buy one.
Go look for a used Deer or Cat skidsteer instead.
The front dump on those farm tractors are for moving cowshit and maybe snow off a paved driveway -anything else and your asking for breakage, trust me.
I have run heavy equipment my whole life -you would be simply amazed at all the uses of a small skidsteer -not to mention how tough they are. You could rent an attachment for a day to auger the holes for your trees. You can plow snow with them -you can use them as a small dozer, they are super fast at getting work done.
They hold there value much better than any farm tractor ever will.
If you dont belive or doubt what im telling you then go rent one for a day and watch how much you can get done with it, thats befor you even get the hang of it
after that you can fly with them doing work.