The Chelsea boss unveiled new loan signing Maniche at the club's Cobham training ground yesterday, insisting that while he would not exchange domestic cup success for their second successive Barclays Premiership title, he was already dreaming of opening the 90,000-capacity national stadium on May 13.
Chelsea face Coca-Cola League One side Huddersfield in the third round at Stamford Bridge today with Mourinho making wholesale changes to the side which has put them 13 points clear at the top of the Premiership this season.
Mourinho confirmed fringe stars Glen Johnson, Robert Huth, Wayne Bridge and Carlton Cole will all start the game which he hopes will be the first step towards a dream final in four months' time.
"If you asked me if I would exchange two cups for the Premiership, I don't change," said Mourinho.
"But cups are beautiful and the finals are great moments. Last season we played the Carling Cup final in Cardiff and it was beautiful, so I can imagine the FA Cup at Wembley.
"The FA Cup is a bigger competition than the Carling Cup and Wembley means much more for football than the Cardiff stadium with all respect to Carling Cup and Cardiff stadium.
"We have the FA Cup final in our mind. We are going to do everything to be there. I know what it means for English football and for the fans.
"The Premiership is the biggest competition in the country but the FA Cup means a lot because of the tradition and you have to win matches in good and bad stadiums, in stadiums with history and without history.
"I played at Wembley as an assistant with Barcelona against Arsenal in a Champions League game and it was a fantastic feeling, so I can imagine a cup final at the new Wembley.
"We have to do everything to be there but I can guess every big club is also dreaming of that."
Mourinho has challenged his fringe players to prove they have the desire and ambition to break into the first team on a regular basis by seeing off the Terriers' challenge.
"The Premiership is about dozens of matches and the best team wins. Cups are knockout matches and one bad day and you can be out. Sometimes the best team doesn't win.
"We face the cup with responsibility," he declared.
"I am leaving Frank Lampard and John Terry out of this game, but this gives responsibility to the other players and if they cannot cope with this responsibility of playing cup matches against Huddersfield, they are here for nothing.
"But I trust them. They always give a good contribution to the team when I pick them. If they can play (in the) Premier League and have the ambition to play regularly for Chelsea they have to play very seriously against Huddersfield and win the game.
"We are waiting for a difficult game Huddersfield come with a lot of dreams and are one of the best teams in their division. They are coming to give us a game.