Hanging GWB is not difficult. Beer a friend into helping you out. All you need is a razor knife, a screw gun (battery drill will work in a pinch but buy a dimple tip so you are not over driving the screws) a tape measure and a straight edge. a T square works best but you can get by without it. If you are going for a "finish" rather than just fire taped I'd pay someone to do the taping/ finishing. It is not difficult but if you have never done it you will screw it up your first time.