I just got a new Mark V frame and I want to put both brakes on. The bike has got both front and rear mounting holes/brackets and braze-ons on the frame to hold the cable. I'm sure I can mount the calipers and levers but my concern is the cables. Are there pre-made kits? How do you go about doing this yourself? Thanks!!
buy yourself a decent cable cutter.
buy some cable housing and ferrules to cap the ends of the cut housing.
Hold the housing against the frame to find the right length and hold the spot you want to cut or mark it. cut it, then cap the ends with the ferrules and place the ends into the brake lever/frame stops/caliper, thread the brake cable through the housing, set the cable at the correct tension, tighten the bolt that holds the cable on the caliper and you're set.
you might have to open the ends of the cable housing where you cut it. sometimes the inner plastic sleve gets crimped. some cable cutters have a prong you can stick in the end to open it up, or just use a finishing nail. that will make threading the cable much easier.
also, make sure the cable has smooth transitions into the brake, braze ons, etc. if the cable is too short or too tight, you can get binding which will make your brake performance suck. i also drip tri-flow into the all the pieces of housing before installing the cable. it helps the feel and prevents the cable from possibly getting seized.