I installed this kit on my 1965 Barracuda last year. The kit is very complete and includes everything. I only needed to buy some additional brake line due to the location I chose on the frame rail for the proportioning valve. The instructions do not have pictures. I used Mopar Muscle magazine's article as a guide.
http://tinyurl.com/29ds3g
My car had 10" drums so I did not have to change the spindles. I spent a Saturday installing the parts and Sunday plumbing and bleeding the brakes.
When the brakes were finished, I took the car out for a test drive and thought the brakes did not work as well as the drums (more foot pressure required). After driving a couple hundred miles, the brakes now feel superior to the original drum system. No need for a power brake booster. My car originally came with 13" wheels. I've read that the steel 14" wheels will not fit but the 14" Rallye wheels will work. I chose to go with 15" small bolt pattern Rallyes from Wheel Vintiques.
Don