Man, beefy AB you got on the back there, I really need to get something bigger than my D90, but a mixer comes first.
Anyways, here's my 370 without the Zylight, or much of anything at the moment. I keep the tandem on for better balance in the back, and I usually end up plugging in on location anyway, so...
Mic is an NTG-1 on the light arm for better positioning (unscrewed the stock mic holder), I don't often use the Zylight on-camera, so I once I get a second battery, the D90 gets lighting duty.
Once I get over to B&H, I'll be getting a Sound Devices 302, a hyper, and boompole with the usual suspects. Sound city here I come.
You might consider (as the budget allows) hanging an Anton-Bauer QR-DSLR off the back of that rig, it would serve nicely as a counterweight and with the proper battery provide you with enough power to shoot all day and still have enough left over to a monitor and an mixer.
I wanted to mention this earlier but hanging a pro battery off the back would probably come to use once the OP decides to expand with a monitor or mixer, whenever that is, so it depends on how much kitchen sinks one intends to bolt on there.