The best KJF that can be mustered from my mind is as follows (in short, the perfect details depends on opposition).
Russia, stacks 6 inf in Buryatia on R1, allso moves 2 Arm to Yakut. this is done to attack machuria R2.
2 Inf from Novo to Sinkiang, to defend it.
UK build factory in India R1, attacks french indo china with 3 inf(india) and 1 fig sz35 (65% succes in wiping it and having atleast the fig remaining)
DD SZ35 kills Japan Trn, UK trn sail to SZ49 to prevent Japan reinforments to reach french indo china J1.
USA builds factory in Sinkiang, and build fleet in pacific. (should still put a little cash on a trn or two to send to reinforce UK and make raids on germany.
Russia will in the begining have to face Germany quite alone, but when japan is pushed back of Asia continent and US navy appears they will be able to get reinforcements from india and Sinkiang (figs, arms, etc).
this is my thoughts on a usable KJF strat. (Russia will get more income then if you do KGF, and that will help holding germany at bay)