It's a track focussed car, doesn't go on road, much .
The standard cable handbrake is made of chocolate, and even with project mu brake shoes in, after a day, it's back to being a load of pony. So going for a hydro, in-line, so both cable rear handbrake, and normal function of the rear brakes will also not be affected. Apart from the abs, which will have the plug pulled, but that's overated anyway