i got mine made up at a brake shop, i marked out on the stock cables what needs to be kept (body mounting locations) then marked where on the stock cables needed to be changed to the g series (in my case jza70 handbrake) so all is stock cable, untill it goes threw the g series backing plate and onto the handbrake mechanism.
loosen off the adjuster at the front lever to take measurements (where the cable loops) so when you get it back you have heaps of adjustment to tighten it up.
do you have the g series cables ? they might need to match them up. so they can add them to the new cables to fit your car.