I remember someone posting they bent the frame hauling out a dead animal using the 1-1/4" receiver, and I think you may have a similar result pulling that much weight unless you get the 2" hitch mount that will distribute weight over both side frame members.
I went with the 1195CMP 2" Receiver Hitch from MFG Supply because it was about $10.00 less than the Moose Industries hitch, looks identical, and worked great skidding trees after the Beauregard Tornado - see #29 here
P500 - Test ride
Good luck.