Full Production, Top 40 Pop Song With Female Vocal

Hi, I'm looking to produce a pop song, basically a top 40 R&B sound with female vocals. I've got the music and melody and will need a "one stop shop" that can give me all instrumentations, mixing, mastering, etc., as well as the female vocals. My budge is limited, so can only considering a reasonable fee (that includes the female vocals).

Additional info:
I'll need you to master it too if possible. . I'm hoping to find a good mixer that can work with my limited budget. I don't have a hard deadline for this.