I have Troy Built 10hp that I bolted a drawbar onto, and use hooks and a pin on top link. The chipper is very top heavy and was impossible to move on hills(narrow skinny wheels).
The added advantage was the chipper is a bottom discharge,and now i can leave extra clearance under it, or level it when on hills
Sorry to take so long. Incredibly busy work week and we FINALLY got a little SNOW /forums/images/graemlins/grin.gif. They called it a "Storm"...at about 14" I call it a snow but, the blower took the 1st really wet and heavy 8" without breaking a sweat. Had to go a little slow as it packed and pushed if I didn't eat into it slowly. When it started to dry out, the plume of last 6+ inches shooting off into the woods was a thing of beauty.
Anyway, FINALLY got the pictures last weekend but, daughter didnt' download them 'til last night. Hopefully I can figure out how to attach them and not eat up too many bytes.
I'd think that you could get yourself a drawbar from TSC and fabricate or buy (maybe from TSC) a "U-shaped" metal bracket that you could weld or bolt to the chipper about at the bottom of the hopper, to attach a top link to.
Just attach the chipper to your drawbar with a couple U bolts or muffler clamps via that little footer in front of the wheels in your photo. Actually, TSC has some U bolts and metal end pieces in a kit that I used to attach a hitch receiver to on my Gravely sulky. The U has about a 2" spread and is about 3 to 4" deep.
Check top link length you need. Shorter ones are available in the Cat 0 size.