The Qatari Defense Ministry is talking to the White House about transferring the luxury-configured Boeing jet to the Pentagon, which would oversee its retrofitting into a makeshift Air Force One. But a private contractor would have to rip it apart to turn the jet into a flying White House for the president with secure communications and classified upgrades, according to former Air Force officials and lawmakers, an expensive and complicated prospect that could cost taxpayers hundreds of millions of dollars.

“This isn’t really a gift,” said Rep. Joe Courtney (D-Conn.), the top Democrat on the House Armed Services Seapower and Projection Forces Subcommittee, which oversees executive airlift. “You’d basically have to tear the plane down to the studs and rebuild it to meet all the survivability, security and communications requirements of Air Force One. It’s a massive undertaking — and an unfunded one at that.”