do I need K12900E-4 for 68 904 rebuild?

Maybe they have changed the transtar kits and northern tool is just out of date on their webpage because nowhere else do I see that subkit required. WIT lists the same 12006A kit for 68-71 for less ($80). So that kit, the A12654 sprag for $4.25, the S12912 servo piston for $15.08, and I was thinking the T22165 simple transgo shift kit for $31.37 or is the Superior S22165 shift kit for $36.07 better?
Anything else?