I saw that thing in person this weekend in Orem at a grocery store. Cage is definitely bolt together as seen in person, a closer look at the eBay pictures reveals the bolt together sections. The only fabrication on the cage is the welding to the bumpers. Not as bad as the bolt together nonsense that is stock on TJs, but pretty close. The undercarriage was spotless, not a sign of ever venturing offroad. The rock sliders are poorly mounted to the side of the unibody rails, with no wrap-under support and a small point of contact between the slider and the rail. The joints look sloppy and shot, which is unusual for a vehicle clearly not wheeled.
On a positive note, the paintjob is pretty. If you're gay.