[Imp]

Up vote Scorpio’s comment you are just playing a game no historical correctness at all.

Don’t get me wrong when I first started bought the good stuff but with WWII in particular with its wide variety of units the fun comes in coping with them and adopting your play style accordingly. Interestingly the game is good enough if you play with semi historical accuracy you find your self using tactics similar to real life because they work.
The diversity of units is what makes WWII great compared to most modern battles, A KV or Tiger showing up can cause problems like it should if you don’t have a counter.

Level bomber is an odd pick however.

PBEM done this in the past
One player buys both sides save as a scenario
Send to other player and let him chose the side to play.

Better is send it or a list of units if they can follow it so they can buy those exact units.
If you set the force size slightly larger once bought they can buy a few more units as they wish to stop you knowing exactly what you are facing.