I couldn't agree more with what Ubi has said. I get sick of people saying that my watches aren't 'real'. Yes they are real, they really tell the time, they really look great, they really are waterproof and I really love them quite often more than the gens I own - they certainly get more wrist time. So, reps are real watches assembled by real people be them Swiss, Chinese or Martians - I don't care.
Sorry - rant over.
Oh, and if Ubi can't make one for less than $4500 then it can't be done.
Good luck with your Daytona whichever route you chose to take.