It depends a lot upon where the loudspeakers are in relation to the microphones... if the speakers are 'looking' into the same space as the microphones, you're on a hiding to nothing - all you'll get is feedback.

However, if the backs of the speakers are towards the mics, you may find your second idea will work reasonably well.

Bear in mind the 'Inverse Square Law' - the sensitivity of a microphone drops off by the inverse of the square of the distance between the microphone and the sound it is meant to pick up!

In the past I've used boundary mics on tables rather than suspension mics...