Converting a luxury jet gifted by Qatar to President Donald Trump into a replacement for Air Force One could potentially cost hundreds of millions of dollars and it could take up two years to install the necessary security equipment,

Trump’s plan to accept the luxury Qatari plane has raised ethical concerns, as well as concerns that he would be compromising safety and security

U.S. officials say it could be converted into a potential presidential aircraft to replace the 40 year old Air Force One. The Qatari government said a final decision hadn’t been made.