Could be worth deciding a "substitiute" ship for the Chel'Grett and Dominion heavy escort to bolster their roster a little using a pre-agreed stand in ship with the holo emitters. I'd suggest science ships for the Chel'Grett what with it's energy dissipator, Breen Set for added authenticity.
Will weapons selection be "historical" too? Phasers/Disruptors for the coallition, phased polaron for the Jem'Hadar, and the spoonies doing their thing, and the Breen theirs?
Will the Jem'Hadar set be allowed? I can see "Victory is Life" getting... problematic with 10 ships using it.