This is a production not a daydream. What is the budget? Like a movie, it costs money. Can be either low budget or blockbuster but consciousness of the projects interaction with financing is important…all the way from cost of "effects", e.g. new "costumes", cosmetic surgery, flying lessons, a trip to Rio…to day to day living expenses. Is your new character commercial or a low revenue producing art house offering? You are the producer. You have to raise the money.
Another take on this same question: This type of project is much easier and more effective if money is not a consideration. If your new character involves having to do something new for money…e.g. art not fixing cars…the new character has to be marketable. This is part of the character description. This is a different game indeed.
