Braided Brake lines

Your post says from MC to calipers. Is that what you really meant? It is a really bad idea to plumb the entire car with braided hose. You should use hard line from the MC to the tabs on the frame rails and then use short lengths of flex hose to connect to the hard line. Braided lines are fine for the short lengths. Buy high quality brake lines with the nylon covers and you'll be fine.
No, sorry, it's a MC to portioning valves to appropriate calipers up front. NiCop from MC to rear is what is going to be used.