My suggestion for the Turranic raiders btw. would be to merge the 3 turranic factions that are in game.
That large vessel here would be the Turranic Flagship similar to that of the Vaygr in it’s function: https://www.youtube.com/watch?v=ZIpqJsg48k0
The huge station that also FX Galaxy mod uses would serve as shipyard while the outpost with the smaller hangar doors (HWU/Cata based) would primarily serve as advanced research center and minor ship construction facility, fighters & corvettes, frigates.
For the Taiidan I would suggest taking the same approach as the original HWU did. So the research centers will become their shipyards unless ofc. you can trade with FX Galaxy to get their amazing shipyard for something else HWU owns. Back then we traded the Vanaar Jet for their improved Taiidan mothership.
I would also suggest to implement the Taiidan weapon satellite first seen in DoK down scaled as anti ship turret platforms. https://youtu.be/CGBk_OH5oto?t=57