I love to browse the what have you conquered thread. And I've done plenty with mine, but nothing so ambitious as many of you, wasn't sure it was worthy. But this, 43" diameter stump, this will be a challenge. Even once I've dug it out, cutoff roots, not sure the 2032 will pull it out. I dug one out half that size, and it was all I could do to lift it with the grapple. There was a lot of dirt/clay among the roots it weighed a ton (figuratively speaking, not really sure how much it weighed).
So I've often read we can tackle any project with our compact tractors, it just may take longer. I have no idea how deep and broad the roots on a oak tree of this size are.