I've known that people say it's impossible ever since I started EB at v1.0. The issues that I hear you come across are:

-4tpy does not work properly (Which includes Year Jumps, reforms, etc.)
-Gov't markers only placed for first faction
-Recruitment is incorrect
-Money Bonuses incorrect

If there are any more please let me know


Some thoughts I had were to make all Gov't buildings available/all units available and rely soley on the player to select the correct units. It's a stretch but if there is no other way it seems do-able.

For the money script, that could be easily removed (I assume)

AFAIK, the 4tpy script can be remade depending on the number of players, but I have no clue how to fix reforms and such

The question that I am asking is if anyone knows what is required to change to make it playable as hotseat/PBeM. I am willing to do as much as I can to mod it that way, so if anyone would like to assist any help would be appreciated