REFOAM B&W 604 s2?? Need help

I need to refoam two elements it´s two 7" and the material is rubber, can someone please help me find refoam kit, or i must buy new elements and it´s exapansive.

The old foam is broken and are some small wholes in.

thanks for looking
It would be about the same price, if not cheaper to just replace the drivers, you can call B&W parts at 800-370-3740.