The Mets finalized a three-year, $36 million deal with Oliver Perez on Monday that almost certainly ended their chances of landing Manny Ramirez or Pedro Martinez. Sources familiar with the team's thinking claim that they are now looking at low-cost options to fill their remaining holes. They want to add a right-handed hitter and a left-handed reliever. "The idea of Pedro coming back was always a long-shot and the signing of Perez makes it even more remote," said a person familiar with the Mets' thinking. "I guess you can't quite rule it out. I would put it in the extremely, extremely unlikely category."