Do you know anyone local with a mini? While you wait for a proper one to show up, might want to consider patching up the one you have and hitting it with a coat of silver paint. I was in the process of doing the following when a NOS one popped up, but here's the idea....
1) Find someone local with a good panel that you can make a mold from. For proof-of-concept, I just used my son's Play-Doh.
2) Attach the mold to the busted area, and use a product like Plast-aid that you can mix and pour into the mold that will bond with the broken original. http://www.plast-aid.com/