Screenplay

we are looking for a screenwriter to write as screenplay from a long synopsis that is considered for development, a world war II movie (independently produced). We have the entire story in voice recorded form as l long synopsis, we need to have it down as final draft screenplay with "some dialogue". Our main screenwriter is not available right now and he will resume work on it in three weeks time, in the meantime we need to get this in some shape to get ahead. with possible funding. Is it something you can do? Three weeks....