Need +3 or +4 brake cable

[specialized7]

Alright well im gonna need a new brake cable so if anyone has one laying around thatd be great, but i highly doubt it.
anyways whats the cheapest place to get one?
either one will work this will help determine how much bigger im making the swingarm.

 

[mr_3_0_5]

2smoker has one for sale.. its new..