If i would be an third world dictator,i wouldn´t buy any WW2 Aircraft.
I would transfer the money to my Swiss Bank Account.
Ok i am serious now:
Heavy Bomber: none
Light/Attack Bomber: Pe-2
Fighter Bomber: IL-2M
Air to Air Fighter: Yak-9
I wouldn´t chose a heavy Bomber because my low educated Soldiers couldn´t maintain them,also my third world Country is very small,so there is no use for them.
For all other categories i would choose Sovjet Airplanes for their easy maintenace under even the worst conditions.
And they are cheaper then other WW2 Airplanes so i can transfer more
money to my Swiss Bank Account.
After i received the Sovjet Planes, i will kick out the Sovjet Advisers a few years later and ask the US Government for military assistance and i will get all military equipment which i want for free,which makes it possible for me to transfer even more Bucks to my Swiss Bank Account.Then my friends in Washington DC call me an"important friend and allie"all other Nations call me the President of Egypt