71 swinger. Manual or power brakes

Master Power Brakes as referenced in the article is one source
http://www.mpbrakes.com/1971-dodge-dart-front-disc-brake-conversion-kit-legend-series?filter_name=
To upgrade to the newer 73+disc system, the spindles need to be changed as well, & I notice this kit includes them. There may be cheaper options out there, time spent searching the net might help, and the help of others on this site. I originally did mine in the late 80's when junkyards held more plentiful options. I prefer one stop shopping more now though.