How Big is Solas Tempus?

So a few ideas came to me tonight. I have always had issues deciding how large Solas Tempus should be. At first it was one ship, then it branched out and I figured it was a large massive fleet, not unlike Starfleet. For reasons, I scaled it back then saying it was a small fleet of older ships that were refit. A lot of that was, as I started to put things on the wiki and such, I only had designs and schematics for a limited number of ships.

So, here it comes to the question again. It becomes clear to me that some form of combat forces, special forces, would be useful. To branch Solas Tempus’s organizational structure to have more than just 3 branches, including security, special forces, temporal, etc… So, how big should Solas Tempus be?