No that looks about right for what I usually face from Japan in unit count on those turns, but it does not tell the entire story as you assume the allies are going KGF, this is what germany faces.
UK: min 4 loaded trannies threatening poland, france, and berlin, Plus around 2-3 planes at least.
US: min 2-4 loaded trannies threatening france, rome, and africa, plus when i play i’m at atleast 6 bombers at this point.
USSR: around 10ish armor, 10ish inf, maybe a fig or two, probably many more inf/arms depending on trades with G.
Also, at this point russia should be making 40+ and germany after SBRs is typically below 30, and italy is around 10-15 at the most. Now holding India against an J2 assault is really easy to do, but costly as in no more heavy KGF (I dont do these, tried 'em usually germany goes monster on me.)
USSR: Purchase 1 bomb in caucaus as well as placing armor there, 2-4 inf into persia optional.
UK: Purchase whatever you like, in this situation though I like buying 3 bombers (i’ll show why in a moment). DD block invasion of Australia, or bait Japan to taking it.
US: Fly 2 fig, 1 bomb to Australia.
Now, Japan can take east indies, and loose its tranny, russia can reinforce India if it desires on turn 2, before japan, or not. They can also take trans-jordan to allow the UK an LZ to sink Italy’s fleet. UK can even attack burma if desired depending on the J1 move. On UK2 they can land there bombers in a location to threaten a Japan fleet if desired as well, and 3 US planes are in range to reinforce as well.
Option 2, Bait 'em.
Typically japan sends a single carrier toward india, in this case if you can hold Australia land your 2 fig 1 bomb (US), pull back to persia reinforced by russia so it will hold. If on J2 they take India with boats, retake it and sink that fleet with US planes. You can also send your UK bomber there if needed.
Option 3, carriers FTW
Do as option 1 with russia, as UK purchase an IC in india and land 2 figs in French West Africa, US sends 2 figs to australia as previously mentioned and loads up her carrier in Hawawii SZ, DD block if your scared but i’d rather bait japan into attack my carrier.
On UK2 purchase 3 carriers, load 'em up with 6 figs. No more Japan navy threat. This can also be modified to 2 ACs and a DD or trannie using US only planes while the US buys 1-2 figs and bombers to threaten the Japan fleet. Another neat thing is US figs on UK carriers are a strike range of 4 sea zones (something that may surprise some players, even more if you move your US carrier around properly allowing for some crazy stuff in the pacific! I learned this lesson the hard way on TripleA :-(). Now that I think about it I kinda want to try that.
There are also things you can do in a KGF to help slow down Japan. Allied bombers can SBR japan’s ICs and threaten her boats/trannie chain. Turn 3 is a great time to build US pacific forces in a KGF as your trannie chain is established as are your bombers, while Japan just got done building ICs and her navy hasn’t grown since T1. Holding in Persia with the UK troops and russian INF helps, allied figs can also land here. Keeping a few armor in Caucaus can help threaten a quick strike at india to slow down production. The key is in the switch, when Russia stops pushing against germany so hard and turns her eye at Japan. When the US knows berlin will fall in time and harasses Japan’s efforts, etc. Also, if the US takes and holds France her income is about the same as Japans!
But in all honesty, when going KGF you should expect 20+ Japanesse near russia by turn 4-5.