Rear Brake Cable Sources?

[Robbieben]

Does anyone have a source for new rear brake cables? My current cable is very poor and likely won't last long at all, the outer sleeve is damaged and the inner cable is looking very worse for wear. I'm currently rebuilding the bike after refurbishing it and in the grand scheme it likely is the original factory fitted cable, everything else is pretty much unmolested on the bike.

Thanks
Rob

[Robbieben]

Update.

I've now sourced a new cable