Motors we are using rc tiger 3520, maytech 40amp escs, 2xs 6s 5300 mah batteries. Cameras t2i, gh2, possibility on using our 5d if there is ever an instance our single rotors wont get the shots.
Then down from that is APC slofly or thin electric. I got all of em, like the nitro xoars graupner a are decent, come up to 12" but I don't think that big enough for ya
You may want to call Julie at Bob's Hobby 407-277-1248 (justmodelprops) and see what she stocks in the matched pairs.
Xoar is what we have found work well, but you will need to get an order in ASAP as they order only so often and they cut-off is in the next day or so.
Xoar is moving to a new mfg. plant & orders are being delayed.
Her next order, if you place it today will not arrive until May.