about the xxlw wings, we still have a few of them in stock, please contact us: firstname.lastname@example.org
About the conventional wings, to be honest, IT IS VERY BORING to ride with it (for kitefoiling and also for windfoiling).
About shallow water, you will not start easier than a carver, the main way to start in shallow water is to have the right technique, and a big wing wing will be worse as usually the span of the big wings is higher than the carver one.
For that ride I should suggest to use a shorter mast, which will help you more.
Finally for big wings, we are still working on it as this is a big challenge to make them fun to ride. Stay tune, we will introduce them but the Delivery date is not sure yet.
At this time I definitely prefer to kitefoil a 70cm mast length with a spitifre foil equipped with XXLW wings, the take off is done at super low speed, and the carving and fun potential definitely way higher.