For the practical aspects, I think if Liberty Prime, which never worked in the first place, could be activated by the BoS (with no industrial base), the Dominion could maintain a battleship, particularly by limiting the use. Perhaps they exert control over NS Mayport in Jacksonville to use ita facilities?

For the gameplay aspects, you're probably right. What would serve as a better replacement? I could do HMS Warrior. I want the sea/river equivalent of Vertibirds; high tech hard hitting fast moving vehicles, but can't really hold territory.