>>>Any other alternatives I should consider?
The Honwave 3.8m (or 3.2m if you think it big enough) with V air floor. The V is far less pronounced than the Aerotec but slightly greater than the Zodiac. I like Honwave quality and they're great value... you can get a new one for the price of a few years old Aerotec.
Also look at post #12 in the thread below for a comparison where I took both Aerotec and Zodiac on holiday in 2015 for a true back to back comparison.
Old used Aerotec impressions.