Sounds pretty solid.
For the money British subs will probably net you the most in the TUV trade. Though it’s hard to argue with Wittman’s suggestion regarding the Atlantic fleet. If you can deter that U-boat attack and keep the transports, it gives the Americans a much stronger opening.
Sz 37 can be kind of high risk, unless you are going to fully commit against Japan, take an island at the same time, and follow up with the Americans. A sub in the Med where it can be used to immediately destroy the German battleship can be potent as an alternative. It allows you to secure Africa with a quickness for a comparatively small investment. There’s not a whole lot the Germans can do, they can take Gibraltar and buy a destroyer to block but it’s still a losing proposition. A sub in the med costs 3 ipcs more than the inf in Egypt, but I think it does a bit more to shock the Germans out of any ambitions they might have to take the canal on G2. Basically you force them to decide between just sacrificing the Regia Marina or wasting money to support it. The latter is a particularly grim option for G, since they really want to be buying bombers to sink Anglo American ships, not reversing roles and buying pointless destroyers only to see them get blown out of the water by Anglo-American bombers.
Another alternative, which I haven’t seen all that often but which can be effective is to spend 9 ipcs for British infantry in Persia, India and Burma. 3 more infantry in India on UK1 non com is solid. That’s basically getting you a full purchase round ahead of the Japanese in the India stack contest and makes it a lot easier to hold that territory into the endgame. Then just nuke the Japanese transport in 61 as usual and camp out till all the fighters arrive. 6 extra defensive pips on India right out the gate is hard to overcome. They’re not doing you anything in the round 1 naval TUV trade, but the naval TUV trade doesn’t matter as much if you have 11 ground and 1 AA gun on India at the end of your first turn placement. Or hell, you could have 13 total ground and 1 AA gun, if you sacrifice a transport and pull the dudes out of Egypt. Not that you’d need that much, but it would almost certainly make the Japanese players’ head spin heheh.
With a bid of 19, you’d still have 10 left over to do other things. Like bid a fighter for the Brits in Egypt to truly lock it down, or a Sub to mess with Japan or G. Or the Atlantic DD. Or more dudes for the Russians.
Most people use their bid for round 1 attacks exclusively, but the long term defense of India is so critical (not just for the factory and deadzoning Japan at sea, but also for holding Moscow.) So it might be worth considering. The alternatives usually have you giving up India sooner than you’d like (ill advised), or else sending everything you can spare to India at breakneck speed, every round from the first round on. So an early leg up at the India factory for a cost of 9 starts too look less and less expensive.
Or if none of that grabs you there is always 6 ground to Russia on the Eastern front, which is a pretty deep stack at the all important center.
I think you can have a pretty entertaining game as the Allies at 19. Hope you guys have fun!