I Have to agree with some of the points here. So here's some Suggestions.
Shipsets - Some of them aren't that good i'll be honest. I've been searching the internet for decent pictures of Earth Alliance ships (mainly 3d model renders) for a personal shipset and they're coming out quite well. If i can get pemission to use them in a Public released set i'll send them to you. I'm also thinking of doing the same for the Minbari/Narn/Centauri.
Also I'm pretty sure a lot of us could contribute by creating biological/social/history descriptions for the empires while leaving the major modding stuff to the main team.
The Mod Itself. I'm not that keen on many of the component pictures but thats just me
The Main problem and let down so far is the rather slow gameplay. I would personally prefer a faster game. Maybe use FQM's scale of population to balance off the huge space cargo bays have and allow empires to develop quickly. For Players who think B5 games shouldn't be about huge massive empires set it up to play "Players can only colonise Breathable planets" or something. All races should have simmilar tech for basic facilities like Mineral Miners and such but each race should have their own facilities and bonuses depending on their race.
Earth Alliance:
Intelligence Centers - Nightwatch Recruitment Center/Ministry of Peace HQ/Psi Corps
Happiness Facilities - ISN Broadcast Center
Planetary Shields/Combat Modifiers - G.O.D Aegis Defence Grid (No scorched earth anyone
)
Ship/Fleet Training Facilities - Earthforce Academies
Medical Facility - Edgar Industries
Minbari:
Research/Planet Conditions - Religious Caste Temples
Any Combat Modifier/Training Facilities - Warrior Caste Related
Resource Modifiers/Spaceyards - Worker Caste Related
Intelligence Centers - Anla-shok/Ranger Outpost
Happiness Bonus - Halls of the Grey Council
Centauri:
Resource Production - Slave Labour Camps (Preferably Narn
)
Happiness Production - The Centaurum or Something equally as noble. Or maybe a Centuari Temple devoted to the "Goddess of Passion".
Combat/Training etc - Something made up that sounds very royal and has to do with the Emperor.
Intelligence - Centauri Diplomatic Hub (as we all know what centauri diplomacy is like
)
Narn:
Happiness Facilities - Temple of G'Quan (or G'Kar
)
Resource Related - Global Reconstruction Facilities.
Research - Narn Backwards Engineering Plant
I'm flat out of ideas now but i'll try and get some more ideas posted for you to think over.
Edit: As for creating a B5 Map i'm pretty sure there's maps out there where we could compile a bunch of B5 system names at least