Great Ducati gurus, I call upon Thee!

Some time ago I saw a very neat fuel overflow tank made of carbon fibre for a 748RS.

I'm not sure it's actually called a fuel overflow tank but I guess you all know what I mean.

It was mounted underneath the main fuel tank and there was a fuel line running between the two tanks allowing the smaller tank to catch fuel spills from the main tank.

Do any of you know if such an overflow tank would fit a 998? And if so, do you know where to get one? And perhaps a price guesstimate on top of that?

Thanks!

Respectfully yours,

Polar