Thon Roadcase Behringer Wing Comp.

Sturdy and still fairly manageable by yourself.
Is has everything your wing compact needs to be transported safely.
Doghouse offers extra protection (dust and moist) for inputs and outputs and offers an extra compartiment for extra stuff. The wide wheels keep the case stable even with the lid removed, so it can stay upright without tipping over. A small but useful detail that isn't guaranteed with narrower wheels.