Replacement Visor

Hey guys.

I have a small problem with my helmet's visor. My wee brother in law decided it'd be a good idea to play with my helmet and place it visor down into our lawn that's covered in rocks and stones.

Needless to say, the visor is now scratched beyond all hope of repair. I've tried polishing and using the special wax stuff. No joy

Now has come the time where I'm scouring the internet for a replacement visor, only to find nothing at all in the way of them.

Do you guys know if the GMAC Jaguar is exactly the same as another helmet with a different name, or if there are any replacement visors out there? I don't really want to spend money on a new helmet as money is rather tight :\

Thanks in advance

Tom