Sound reinforcement for Choir concert

Hi all,

My Choir (45 singers, S1, S2, T, B, A,) will have a concert in a nice hall (ca. 700 seats) in Hamburg soon.

Normally we were accompanied by a band and we had lots of micros close to the singers.

This time we only have a steinway piano and Cajon as instruments and our choir leader wants to see less technic on stage.

We will have a line array (d&b T10+V12) plus some wedges and think about ca. 8 Microphones for the choir. How would you position the microphones so that there would be a good signal from each of the vocal groups, but that they wouldn't dominate the visuals?

The choir will stand in three rows, stage floor +2 risers)

We have Schoeps (3xMk4 and 3xMK21) and a pair of Neumann KM 140s as well as a pair of Line Audio CM3s at our disposal.

All Mics have to be on stands. No possibility to fly them.

Looking forward to some helpful Tips. Thanks in advance

Ronald