My two cents: RP it as the nomies nomie'd basicly all the fleet, and the ships that DID make it to the 'sairs were damaged badly for the most part ( as a way to explain using sirian tech).
Past that... what is your purpose in Sirius (both your real RP one, and the one you tell others in RP, as both may not be the same) ?
Are you just wanting to try to get home ? Are you wanting to spy everything out THEN return ?
Do you even possess the capability TO return ? (IE: was there enough damage to corrupt logs of the wormhole home's location ?)
Also, how will you be interactign with the other houses ?
A wait and see approach ?
Sending, in RP, diplomats to greet them ?
How will your players interact with others, will you preform bounty contracts and what not, or just limit yourselves to using the FLID because it fits best ?