1 song production

Hi, I would like to produce at least one of my three works in progress with a more modern aesthetic and improved sound quality. Essentially, the idea is that it should be elaborated as little as possible, but I am open to proposals on this. For the production of a song with the addition of new sounds and more suitable for commercialization, what is your rate? I will send you the rough song. An idea: A modern trip hop track that is not tied to the 90s. Thank you in advance for the response!

Additional info:
I have a song already recorded and want some additional production elements - sound effects, synths, samples, percussion, re-recorded instruments. I'm interested in working with a very experienced mixer. I don't have a hard deadline for this. . I'm an indie artist. I don't need the song mastered. The tracks are cleaned, tuned, and and the song is ready to be mixed.