I pieced together my kit with Kodiak discs and Carlisle actuator. My 15k 5er with 4- 12x2 drums was white knuckle scary at stopping. The discs are WAY better. There's a guy who does the rv shows that puts together the complete kit with Kodiak and Titan and all the lines and fittings. I can't find the guys card right now but I think he's the stopyourtrailer.com guy already mentioned. I've talked to him a few times at Quartzite. I've read that flex lines cause more delay so I built my own lines with all steel tubing except for the flexes to each caliper. I have all the double flaring tools and a bender. I also have a Jordan cable activated controller and I have it set up so the trailer led the truck when I had the drum brakes. I kept it adjusted the same way for the discs and there's no lag with mine. I also like the oil covers that come with the Kodiak kit but it took some trial and error to get them sealed good so they didn't make a mess on the wheels. Craig