Does anyone know what parts the brake kit contain?
RCD had one apart about a year ago and I just remember a big spring and a VERY small thin layer of brake lining material that wrapped around the edge. It's amazing (to me anyway) how long that minuscule amount of brake material holds up and lasts for decades. Around the mid 90's, Maytag got smart and realized that nobody was rebuilding brake packages anymore so they started producing a sealed version.
You couldn't pay me enough to rebuild one of those with that spring wound up over 200 ft pounds, even with the specialized tools. Just get a new one from partstore.com. They have the best prices for brake packages I've seen anywhere on the 'net.