An expensive question, pal.
My overhead drum mikes were obtained as follows: beg and grovel to Doug Sax for two years to have him sell me a pair of his hand-made custom tube front-ends (beautifully enclosed in stock Radio Shack-type prototype miniboxes) and tube line drivers. Search for CK-1 capsules for another year; listen to C12A's and 414's until a pair sounds both good and is matched. Buy them for $2K only to remove the capsules and throw the rest away. Integrate the units. Total cost: around $15K.
Really big mics, though.