Welcome to our forum.
I purchased an Island Margarita Elite two years ago. We paid a little over $10 all in for the tub.
As far as space, how many people do you expect to be in at any time? I originally planned party central, but in reality, it's me by myself or the wife 99% of the time. So, my advice would be the smaller Antigua.
I sell Artesian. The Antigua will fit 4 people but you are definitely playing footsie. The Grand Bahama has 5 pumps, one for the 3 main seats, one for the footblasters and a circ pump. The Antiuga has 4. On the Antigua, you still get one pump for each main seat but the lounger and the footblasters share a pump with a diverter valve allowing power split, plus the circ pump. Jet power will be very similar with no discernible difference between the 2.
they did not change the footwell. Must be optical illusion. You can definitely sit in both captains chairs and the lounger simultaneously without feeling cramped. It's the 4th person that makes it feel tight.