House Speaker Jim Wright (D-Tex.) said yesterday that House Democrats are near agreement on a package of humanitarian aid for the Nicaraguan contra rebels that could contain incentives for the ruling Sandinistas to cooperate in a cease-fire, perhaps including an end to U.S. trade sanctions on Nicaragua.

But Wright said "the enthusiastic cooperation of the administration" would be necessary before such a "balanced" peace package could be considered, and there was no sign that Wright would gain the cooperation of House Republicans, not to speak of the White House.

"He's {Wright} just blowing smoke," said Rep. Mickey Edwards (R-Okla.), a leader of the pro-contra forces in the House, who said that Republicans will not cooperate in any Democratic bill-drafting process.

With no cooperation likely, it appeared that each side would concentrate on what amounts to a public relations campaign as they move toward a vote on humanitarian aid. Wright said the vote will likely be scheduled next week.

The final value of the package is uncertain, although it is almost certain to be less than the $36.2 million package -- including $3.6 million in lethal aid -- that was defeated 219 to 211 on Feb. 4.

Wright and Rep. David E. Bonior (D-Mich.), in charge of the Democratic bill-drafting process, were deliberately vague about what it will contain, although they said it will almost certainly include humanitarian aid at the current rate, about $1.8 million a month. Bonior said it is likely the package also will contain special aid for injured and maimed children on all sides of the war.

Wright, in an apparent move to pressure the White House, said that if the administration cooperates -- an unlikely prospect -- the legislation could contain aid for other Central American countries and incentives for the Sandinistas to cooperate in a cease-fire, such as an end to trade sanctions. He called for cooperation from the administration and congressional Republicans.

"We would like to put something together that would embrace the beliefs of a wide variety of people," Wright said.

The Democratic group, in a move certain to raise the anger of Republicans, also is trying to lower the cost of delivering the aid, usually dropped from the air in a delivery system arranged by the Central Intelligence Agency. Bonior and Wright said that some international relief agency could deliver the aid at a much lower cost.

Edwards and other Republicans scoffed at that idea. "They're not capable of delivering into a war zone," Edwards said.

But the Democrats said that if a cease-fire is arranged, there would be no problem with almost any form of efficient delivery.

Alfredo Cesar, one of the ranking contra political leaders, said yesterday that the rebels are committed to reaching a cease-fire agreement with the Sandinistas when negotiations resume today in Guatemala.

Cesar said the six-member contra political directorate has adopted a new political and military strategy. He declined to provide details yesterday but said the contra negotiating team will offer new cease-fire ground rules when it meets with its Sandinista counterparts.

"The resistance is going to Guatemala to try to achieve a cease-fire," Cesar said. However, he said, the contras will insist that the cease-fire rules protect the contra troops from eventual elimination by the Sandinistas.

Cesar and other contra leaders were here this week for a round of meetings with members of Congress and administration officials, including President Reagan's national security adviser, Lt. Gen. Colin L. Powell, and Assistant Secretary of State Elliott Abrams.

Cesar said that, as a sign of the contras' seriousness, the leadership has decided to have two members of the political directorate, Aristides Sanchez and Azucena Ferrey, present in Guatemala for the talks. Cesar said Sanchez and Ferrey will have the authority to make decisions on the spot for the directorate.