Two or three “legitimate buyers” are prepared to make a trade for perennial Pro Bowl cornerback Darrelle Revis when free agency and the trading period begin on March 12, the Daily News has learned.

The NFC champion 49ers, who will have 12 tradeable picks in next month’s draft and a glaring need for a top cornerback, are interested in trading for Revis sooner rather than later, according to sources. The Falcons, who lost to the 49ers in the NFC Championship Game, are also considered a team that could emerge as a player in the Revis sweepstakes.

By acting now, new GM John Idzik could jolt the NFL landscape in the coming days and reshape the future of the wayward franchise before an already select market for Revis shrinks.

But it appears to be only a matter of time before the Jets part ways with their most valuable asset.

“He’s gone,” a source familiar with the situation said Tuesday. “This is happening. They’re moving him. They can’t keep him. They’re rebuilding. They’re starting fresh.”

The timetable for trading one of the best players in franchise history is not set, but a lack of urgency on Idzik’s part could backfire on the Jets — some, if not all, of the serious suitors willing to take the risk now may fill their cornerback needs via free agency.

Sources told The News that a few shoppers for the cornerback have already made it clear that they are willing to dole out draft choices and set the parameters for a long-term deal with the Revis camp to get arguably the best defensive player in the NFL.