contact AI n find out their terms and rates of group buys. then contact MR admin and arrange the rules if you r seriously. for most led (myself included) droolers, the price is the most important factor.
So why don't you contact them first and see if they have any interest in doing a group buy after you have people that are definitely interested in it. Remember to keep in mind that you have to make it worth while to them for them to want to offer their product at a discounted price.