Check out this thread: Curious if anyone else has a Puma 295BHSS with outside kitchen
On the second page, one of the members, kteamracing, says they have added a hitch to theirs and use it to pull a double jet ski trailer. I am not sure of the details and the strength of the mount, but I am sure they would be happy to share that with you.
Current TV:'14 F350 Lariat CrewCab, 4x4 Short Bed SRW Diesel w/ Pullrite 2700 (16K)
Current Fiver: '15 Puma 295BHSS Anniversary Edition
Past TV: '13 F150 HD Payload SCrew EB, '08 Tundra CrewMax 5.7L, '02 'Burb 5.3L, '97 Dakota 3.9L
Past Trailers: '09 Wildwood LE 27RB, '02 Palomino Yearling RL, '87 Jayco 1006dlx