Need a choir recording

What I need is a 10 people choir to record two pieces for my show. They are no longer than 3, 4 minutes each. Will be used as background. It's my original music. The harmony is somewhere between classical and atonal. A little complicated.

Additional info:
The song has less than 10 tracks recorded that need mixing. I need the mixer to do some editing, time aligning and vocal tuning before mixing. I'll need you to master it too if possible. I'm interested in working with a very experienced mixer.