[donut]

To me that looks like a C&C with a pickup bed.
Couldn't tell you if it's tubbed, by eyeball a pickup bed may fit with some trimming, just don't haul anything heavier than a bag of chips. I don't remember who it was, but I do remember a thread putting a pickup bed on one. Think someone did it by tubbing, another with a small body lift.

If your interested, contact the seller and see how he did it.