$23K for a Jeep that is missing half the roll-cage? No thanks. But if you were interested I would also confirm whether there is a rear seat coming with it (presumably not) and whether any of the attachment points are still present in the "bed" (again, presumably not since it looks flat)
Rubicons with slightly higher mileage and all of their bits are in that same price range - but hey, that's what negotiating is for!
d-