Very interesting. I started down this route for WW2 using 1/72-1/76. At the end I had similar forces of infantry, mortars, A/T guns and tanks plus an aircraft for all the major combatant powers based on Neil Thomas’ rules. I didn’t pay any attention to base sizes, simply using what fitted the number of figures involved in each unit. This is a typical one:
Needless to say I didn’t get around to rules, table sizes (although 3×3 was always the aim), etc. which would have allowed play but at least I got around to the armies. More power to you sir, interested to hear more.
'The time has come" The walrus said. "To talk of many things: Of shoes--and ships--and sealing-wax--Of cabbages--and kings--And why the sea is boiling hot--And whether pigs have wings."