littlebuddie,
You sure have done your homework...I'm not sure about the kits having inferior parts though.
The only thing I don't see on your grocery list are the upper and lower thrust bearings.
These are Timken style cup and cones, easily available at a bearing supply house, or maybe a NAPA store.
All of the bushings, seals and bearing races will have to be driven in without destroying them. Usually this takes specific drivers, but sometimes sockets can be used, and the old races can become drivers for the new races (grind the OD first).
Chev's of the 40's lists a kit for this rebuild at $127.00, and this includes the adjusting screw. Good luck!
Stuart