I really like the synergies you've got going on. I myself am looking forward to the madness triggers(specifically with
Chandra Flamecaller's 0 ability) and
Olivia, Mobilized for War /
Kalitas, Traitor of Ghet synergy.
That being said, I feel you are forcing madness too heavily. I'm sure that you're game 1's will be like "WTF?!?!" for your opponent. But post-sideboard, instant speed removal is going to be extremely preventative and the current creature selection is too weak to stand up infront of mid-to-late game threats by themselves. Which with no real card-draw engine, its going to be tough sticking multiple creatures on the field at any given time once you've discarded your hand.
Your idea is good. and I'm sure with appropriate testing you'll definitely find a way to make it a little less linear. (especially once SoI releases)