Fed characters can be dressed in the Bajoran militia costume. As for ships.. not really. there weren't that many seen in the show and nothing that could match a real warship.
"Critics who say that the optimistic utopia Star Trek depicted is now outmoded forget the cultural context that gave birth to it: Star Trek was not a manifestation of optimism when optimism was easy. Star Trek declared a hope for a future that nobody stuck in the present could believe in. For all our struggles today, we haven’t outgrown the need for stories like Star Trek. We need tales of optimism, of heroes, of courage and goodness now as much as we’ve ever needed them." -Thomas Marrone
Bajoran ships in the shows were primitive, mostly impulse-only raiders (just a two-seater, basically a Peregrine minus shields and a warp drive) and some freighters. My fan fiction has the Militia retrofitting freighters, buying old warships from the Breen, and licensing the Danube-class from the Federation before they gave up space warfare to Starfleet altogether.
"Great War! / And I cannot take more! / Great tour! / I keep on marching on / I play the great score / There will be no encore / Great War! / The War to End All Wars"
— Sabaton, "Great War"
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My character Tsin'xing
"Critics who say that the optimistic utopia Star Trek depicted is now outmoded forget the cultural context that gave birth to it: Star Trek was not a manifestation of optimism when optimism was easy. Star Trek declared a hope for a future that nobody stuck in the present could believe in. For all our struggles today, we haven’t outgrown the need for stories like Star Trek. We need tales of optimism, of heroes, of courage and goodness now as much as we’ve ever needed them."
-Thomas Marrone
— Sabaton, "Great War"
Check out https://unitedfederationofpla.net/s/