Didn't know how to fix the handbrake cable. The below routing looked like an option.
It seemed to work from here but when the wishbone moves on the cable fouls the wishbone.
Next options below..
While I am thinking about the cable fixings I decided to sort out the handbrake handle and cable ends instead.
Managed to get them nice and tight and about 3-4 clicks to fully on.
Decided on the mounting, seems to work better fixed on the outside of the chassis.