I would make my own from a piece of old tarp. Pull the muffler and warm up the engine. lay the tarp over the hood, the exhaust will melt through. Make sure it is where you want it, you only get one shot at it.
Trim it down to where it will wrap around the tractor, and tie it off. At the platform, I tied it off to the light bar and then down to the axle outside the fenders. Seems to me I might have also run a piece of twine around just behind the gas cap. With the tarp making that upward angle to the light bar it kept a lot of headwind off my upper half, too.
Of course, you will need two more holes, one for gas and one for the air cleaner.