I would say: don't get a III. There are lots of those around here all installed at the same time and all with problems. Among other things: the slates are not doweled (with brass pins from one section going into the adjoining one) and this can lead to unevenness more quickly. Other problems include cushions (many dead and dying, already), pocket liners, plating....
In general, the Gold Crown design (I-III) has lots of misfeatures that players have gotten used to, but there is no reason you need to put up with them (if you are looking for a table to play on).