I am right in the middle of my conversion - got all the parts at AROS in El cajon, they use Unique Functional Products -
UFP - On The Web
I am going to post my pictures next week. My upgrade has not been that simple as many other things needed replacement. When all is said and done, I will have new axles, suspension, brakes, and master cylinder. The labor has not been that complicated and I do not expect much difficulty with the brake install itself. I did a lot of wire wheel clean-up and some painting to hopefully keep things in better shape. Make sure you inspect your springs - I had no idea how worn out my bushings were until I took the old ones off.
For the brake kit at AROS, it ran $445 + tax using the 10% BD discount. That included everything, new trailer buddies and a 5 prong plug for the truck. I'm waiting for my new axles, but I should be doing a road test next week.