Need one song mixed and mastered

I’m working on some original Christmas music with a few friends. We need one song mixed/mastered. It’s an upbeat tune with piano, vox, and acoustic guitar as the main instruments. I’m wondering if a four-day turnaround is possible, or if that’s completely unrealistic. Thanks, and looking forward to hearing from you!

Additional info:
The song has somewhere between 10 and 30 tracks recorded that need mixing. The tracks are cleaned, tuned, and and the song is ready to be mixed. I need it by 26 November, 2023. I'm interested in working with a very experienced mixer. I'm an indie artist. I'll need you to master it too if possible.