You really cant get that much in the back of a jeep cherokee to be honest.
I have a 406 estate and its the 2.1 TD, the engine before the HDI range, its torquey, with 110 BHP and a HUGE load space with the seats down but turns into a 4 / 5 seater in a matter of seconds.
Mine has done 109K and its still runing sweet, i have put 40K on it in the last 2 years with only £180 spent on a job i wouldnt do my self.
good roof rails as standard and a good range of roof boxes / crossbars to suit.
all in all a GOOD buy - watch it blow up on me tomorrow now!
You will pick up an R reg one like mine for 2K or less or an HDi one for not a lot more.