I've got a Woodland Mills WC46 to run behind my 1025R and it's served me well. They have several larger models as well. The only thing I ever found lacking in my 1025R is that I would like to be able to run a bigger chipper. You have an advantage there.
I wouldn't rule out a stand alone chipper. It's going to probably cost more and you'll have another engine to maintain but it frees up your tractor to do other things, like scoop up a bucket of chips and take them away. A woodchipper hanging off the back is big and heavy and really limits the maneuverability of a tractor.
I wouldn't rule out a stand alone chipper. It's going to probably cost more and you'll have another engine to maintain but it frees up your tractor to do other things, like scoop up a bucket of chips and take them away. A woodchipper hanging off the back is big and heavy and really limits the maneuverability of a tractor.