It’s clear that something is up with the management of the Eastern Front. Need to fix that issue before trying other stuff with the bid for UK etc.
When you say there is no safe place to land fighters built at UK, this the first thing you need to address.
Try this, bid 12 for Russia.
1 inf in Karelia, Arch, Russia and Caucasus
West Russia is then 12 inf, 2 artillery, 1 tank =100% odds to the attacker with an average of 12 units remaining. (Plus 2 more hitpoints from your aaaguns on non com.)
Note, that there is no need to leave anything behind in Karelia, as the factory itself is a blocker.
Ukraine is then 4 inf, 1 artillery, 3 tanks, 2 fighters = 99% odds to the attacker with an average of 6 units remaining.
If you do that there is no sensible counter attack for Germany against W. Russia on G1, even if they’re trying to lose the entire luftwaffe in the attempt. Defenders odds (vs everything the Axis have in range) are still 90%, with an average of 7 units remaining.
You can then continue to stack W. Russia again the following round with 7 more hitpoints from Russia and 2 more from UK fighters (plus the Flying Tiger, or British Pacific fighter if desired). There is no way for Germany to break that on G2, even if they bought nothing but tanks on G1. So you are free to land fighters from UK again. You do this every round, until Germany has enough hitpoints and attack power to overcome your stack. No point in withdrawing prematurely, since the fighters from UK will overcome Germany for several rounds, until Japan can threaten the rear.
Everything else should really be secondary to the Eastern Front, but if you have a bid of 18 or more, that gives you plenty to add another hitpoint to Egypt or India or Szech etc. to shore up your position elsewhere. Or if you don’t trust in the overwhelming odds above, then add artillery and tanks instead of infantry to the Russian bid. It will be a total blowout in W. Russia, with a clear advantage to the Soviet defender afterwards to hold the tile.
I really think you need to try this approach before messing around with UK ships, because all those bids assume that the Allies are able to manage the W. Russia defense.
UK should not be considering ships so early in the game. You need a minimum of 2-3 rounds purchasing fighters in UK and ground for India before anything like that is on the table for Allies, because the US will not be ready to do anything of consequence in the Atlantic until the 3rd round.
There are of course other options for the Eastern Front depending on what bid rules your group uses. The suggestion above assumes you are restricted to 1 bid unit per territory/sz, and only in spaces that already house a unit belonging to your nation.
Ps. Think about it like this…
4 additional inf and 2 additional fighters from the Allies each round, is enough to back down 6 additional tanks from Germany at roughly 50/50 odds. The newly purchased Allied units are only 1 move from the territory in question, whereas German tanks are 2 moves away. This means you have time to see the Germans coming and match them with whatever is required. As the defender you really only need 1 extra hitpoint to ice it. For example…
+5 inf and 2 fighters = 7 hitpoints, with 18 defense power, worth 35 ipcs
+6 tanks = 6 hitpoints, with 18 attack power, worth 36 ipcs.
The defendinf infantry+fighters will win against the attacking tanks 3 times out of 4, with both fighters remaining. Only a reckless Axis player would try to press those odds. So it’s just a matter of adding enough extra hitpoints each round to overcome the tank drive and you can just sit there, staring them down.
I’m assuming it’s tanks you’re facing? Because if it’s artillery then it should take twice as long for Germany to get in position. Takes 2 rounds for German artillery (purchased the previous round) to even reach the border of W. Russia.