Pat Green Drum Carder replacement cleaning brush

I was lucky enough to have Oli J buy me a Pat Green drum cvarder for Christmas a few years ago. It was shipped to us from quite a distance and I now think that the cleaning brush tines were all severaly bent in the shipping. This is my first drum carder, so it took me a bit to realize that this is probably the case.

Does anyone have any ideas where I could purchase a replacement? Would an Ashford cleaning brush, which I can find on it's own, work on the Pat Green drum carder?

Thanks in advance for your advice,

Erica