what are the Minimum Requirements for Toons to Join TW

Enye164

Are there any minimum requirements for characters to be elligible to join in TW?

character star count ? toon level ? or gear level ?

some guild members claim that not all their toons were selectable in the available roster after player LockOut/registry.

thanks

Kreontas

6000 power

Caspernene

What about ships?