Why is Ds9 getting a frengi trader and not Drozana station?
While its great that you are expanding function like this, please do not just do it part way and then stop. Please look at the opportunity you have to add these Doff NPCs to all of the various social zones.
Development missions on Risa
Science and engineering missions on memory alpha
and its an opportunity to grant Klingon's access to some of those areas, or to add some small but fresh social areas for the Klingon side as well.