Cosmos II WC Rig

Hello, I'm planning to build a Water Cooled Cosmos II rig. So far, I'm contemplating the following components:

XSPC Razor GTX690 - $130 (FrozenCPU)
XSPC AX360 Triple Fan Radiator - $100 (Frozen CPU)
XSPC AX240 Dual Fan Radiator - $80 (Frozen CPU)
EKWB EK-Supreme HF - $100 (Amazon)
Lamptron FC Touch - 30W - 6 Channel - $70 (Frozen CPU)
10x 1/2-inch Tygon Silver Antimicrobial Tubing - $3.55/foot(Petra's Tech Shop)
2x PMP-500 Pump - $77 (Koolance)
5x Cooler Master SickleFlow R4 Series 120 Silent Fan - $12 (Frozen CPU)
Aerocool Shark Black Edition 140mm - $17 (Frozen CPU)
17x Bitspower True Silver 1/2-inch Fitting - $10 (Sidewinder Computer Systems)
Enzotech G1/4" Stop Fitting - Nickel Plate (Metallic Silver) - $4 (Frozen CPU)
Phobya 180 Degree T Bock - Silver Nickel (64092) - $8 (Frozen CPU)
Phobya Balancer 450 Reservoir - Silver Nickel - $48 (Frozen CPU)
Silverstone Air Penetrator AP181 180 x 180 x 32mm Fan - $24 (Frozen CPU)

Does this seem good? And just as importantly, does it seem complete. For a bit of extra information:

I want to remove the lower right HDD cages and put in a double rad and replace the double 120mm that comes with the case and use two of the listed 120mms. I plan to use the other three on top of the case, on top of the triple rad. Each rad will have its own pump, but they'll use the same reservoir. I also plan to make a T-Junction for easy draining (hence the T Block and Stop Fitting).

Do you guys think anything is missing? Furthermore, could I make any general improvements to the system?