Galciv2: Combining Shipsets and using Babylon 5 models - issues

Hello peoples,

I'd imagine versions of this question/ issue have appeared elsewhere but I haven't been able to find them. 

I just bought the Ultimate edition after a little break from the game.

I decided to build custom races with ship sets using some found in the GalCiv2 library but found some problems.

For 1 race I combined the Romulan and Klingon ship styles. This worked fine and I could view all ships in the designer. I didn't like the Colonyship and so decided to replace it with the Altarian metaverse colonyship. The colonyship appeared but the rest of the ships vanished.

I thought this might be to do with different base-hull types but the Geckodon Alliance ships I downloaded seemed to be working fine. Now they too have vanished leaving only the 3 config ships.

Can you tell me what about the naming conventions etc... has to be consistent for ships to appear? Can ships from different types be combined in a single style?

I would also like to use the graphics from Babylon 5 ships as models in the game incorporated into a race style but my attempts to follow the instructions has got nowhere.

Has anyone tried this with any success? Can anyone offer instructions about how to achieve this?

Cheers

Brendan