VRibeiro X-Design started working on the Super Stallion and they have shared a few screenshots of the model in X-Plane.
The screenshots, which were published on the team's Facebook page, show a very early model which still needs a lot of work.
The project's aim is not to deliver a realistic model. No custom plugins will be developed and everything will be built on top of X-Plane's default systems and flight models.
There is no indication yet regarding this being a free or a payware model.