RZR sizes, HP, 4X4 help?

I currently have a leaf spring supercharged 350 Jeep Wrangler that I am thinking of selling and replacing with a USED RZR.

I am assuming that the coil spring suspension won’t beat me to death as the Jeep does in the sand dunes as that is where I will use it in Rocky Point Mexico at Competition Hill and the surrounding area.
I expect that I will need paddles but don’t know if the 2 wheel drive will be enough or if I need 4X4.
I would like one that will fit in the back of a full size pick up as I will also pull a boat at the same time.
I need suggestions as to what model will best work for me under all of these circumstances.
Also need to know the H.P. differences and top speeds over the years built.

RZR sizes, HP, 4X4 help?

I currently have a leaf spring supercharged 350 Jeep Wrangler that I am thinking of selling and replacing with a USED RZR.

I am assuming that the coil spring suspension won’t beat me to death as the Jeep does in the sand dunes as that is where I will use it in Rocky Point Mexico at Competition Hill and the surrounding area.
I expect that I will need paddles but don’t know if the 2 wheel drive will be enough or if I need 4X4.
I would like one that will fit in the back of a full size pick up as I will also pull a boat at the same time.
I need suggestions as to what model will best work for me under all of these circumstances.
Also need to know the H.P. differences and top speeds over the years built.