. Once he finds a thug with the proper information, he lures G0-T0 into a trap. He uses a decoy vessel to distract the yacht while an armed vessel (possibly pirate) destroys the ship. Unless G0-T0 can transmit himself to a droid that's not on the ship, it's game over.
So, Plagueis isn't there, and he hires pirates to kill G0-T0? Real question, I'm a bit confused. If so, that plan could easily backfire. G0-T0 is an Exchange boss, he has thugs and money. He could possibly buy the loyalty of the pirates, and use them to trace Plagueis. I know Plagueis is rich though, but if they don't take them bribe "Mayhem and destruction await!" Interrogator droids are very good at their job, and I'm sure G0-T0 has them.