I need my single mixed and mastered.

I need the single from my upcoming Album mixed and mastered. Can you help and if so how much do you charge?

Additional info:
I'm interested in working with a very experienced mixer. The song has somewhere between 10 and 30 tracks recorded that need mixing. I'll need you to master it too if possible. . I need the mixer to do some editing, time aligning and vocal tuning before mixing. I'm an indie artist. I need it by 31 March, 2023.