If you weld some HSS 3x2x3/16 tubing under the frame beams running parallel, you can bolt this motorhome hitch to the back:
https://www.amazon.com/s/ref=nb_sb_n...EN+HITCH+82201
I welded it to my old 2006 Wildcat and towed my jetskis until I sold it in August. The pics are from 2006 when I first installed it. I had to move the spare to under the trailer so I could utilize a bike rack when I didn't double tow.
It's rated at 3500# and perfect for small watercraft or a small boat. I wouldn't flat tow a vehicle behind this heavy mess.
Here's a picture of what I did back then:
My 3790RD came with the 2" receiver and no bumper, but they say not to tow with it. I have an idea to strengthen it without a lot of work by adding another 2" cross tube more toward the rear. The framing for the sliding rear storage complicates things a bit.