ha I can try, but with your skill, and myself having been out of that metagame for awhile, your probably better off asking Kevin or other active gen 4 players.
I will however give you a quick rate here. LO starmie looks very tough for this team to combat. You pretty much have to sac something to take it out. This seems pretty shakey considering how common LO starmie is, so I would suggest maybe trying a scarfed set on either Tyranitar or Rotom-H. Just my thoughts.