I have had really good luck with a 2000 Grand Caravan, of course, I take really good care of it. I like the 3.0 engine, it is a timing chain as opposed to a timing belt engine. Mine has 111K on it now. As always, have someone you trust look it over real good including on the rack. Look at the fluids and see if they are reasonably clean. Watch at the rear and make sure there is not a puff of smoke when it is first started(oil burner). Look at the inside real good for signs a slob owned it.
Look it up using the VIN at
www.carfax.com to get a history of the title to see if it came from the gulfcoast(flooded) or maybe a salvage title. It is not a free report, but may save you from getting screwed.
Good Hunting
Stretch