A list of canon shipyards can be found here.
I too had an idea for a shipyard raid, I believe I mentioned it to Pros via PM a night or two ago.
Possibly today or tomorrow. We just have to finish up the Dal Hutta thread, though given some OOC stuff (some of our RPers are sick) we might just do the Dal Hutta stuff and the Enclave stuff concurrently.
Scrap Yard
Description: Raxus Prime is home to one of the Sith's shipyards. It is not that heavily guarded, but if crippled enough, it could slow down, or even stop, the Sith War Machine. Expect an Imperial Admiral to be present, and perhaps a small defense force, along with a few docked Imperial ships.
Location: Raxus Prime
Goal: Raid all Naval Shipyards that you can, destroy naval plans. Demmobilize the Sith war machine. Use pirate ships or highjacked Imperial Ships, do not make yourselves known as Imperial Knights. Cause as much mayham as you possibly can.
Slots: At least one Retinue, prefferably two.
NPCer:
Suggested Skills: Combat, Naval, Escape, Disguise, Infiltration, Sabotage
OOC Notes: None
*Snips*
Not sure if you already have (if so, then feel free to ignore me lol) but you may want to check with Xeno/Sreeya/someone in Sith command about this. If Raxus Prime truly is one of their shipyards - which, according to the link I gave you earlier, Raxus seemed to be one of the only mentioned shipyards in Sith space - I highly doubt they would leave it "not that heavily guarded."
The Sith command folks are awesome about working together OOC to create good storylines, so I highly encourage you to talk to them about this.
Also, I'm working with Mars OOC to set up an eventual duel between his Sith and my IK, and we had talked about using a shipyard raid as a backdrop. So, as I get details worked out with him I will pass them along to you; perhaps your character can lead the sabotage efforts while mine engages in the duel?