1 Song Mix + Master (+/- some co-production)

I have one song recorded + vocals and backing vocals. Although the mix is not cohesive and could possibly use a few "extra" elements in the instrumental production. Musical style is inspired by David Bowie and Gang of Youths. Orchestral heavy, somewhat progressive, indie rock.

Additional info:
The song has somewhere between 10 and 30 tracks recorded that need mixing. I'll need you to master it too if possible. I'm interested in working with a very experienced mixer. I'm an indie artist. I don't have a hard deadline for this. I need the mixer to do some editing, time aligning and vocal tuning before mixing.