There are presently no models of either type of villa. I expect that once Kidani and THVs open they may have a model available for both at the respective resort, but still not at the sales center.
In the meantime, you might be able to visit a GV at AKV by asking at the front desk. As long as they have one unoccupied and clean they are usually good about allowing a brief tour. The best opportunity to find one available at AKV is likely on a Friday or Saturday. It can't hurt to ask.