the dpa mic university is very good....a google search should come up with it and i know if you search here you'll find it.
but it depends on the venue...how large is the place, how far back from the stage will you be setting up, will you be able to get in the center of the pa system, in front of or behind the board, etc etc are all factors that will play into the mic positions....
if you can get in the middle of the stacks, think of it as a triangle with you at one point, and each stack as the other points. (with the stage lip forming one of the sides of the triangle)
if it's an equilateral triangle, you'd probably do well with a DIN configuration, closer to the stage might be good for ORTF, really close like stage lip would be XY...and if you're further from the stage you may want to run the hyper setting on those c1000s and point them just to the outside of the stacks.