For the GPU : MWC60 w/ SMC8800 Cooling Kit (40$, and they come with 13 MC14 Ramsinks and 4 MC21 Ramsinks).

Rad and Pump look fine. Id trust a D5 over a DDC, specially the newer DDC3.2's.

You could also go with Masterkleer tubing, if you exceeding budget, they ain't half bad, and for 30$ you could get 50 feet of Masterkleer. Lol.

Everything else looks fine!

Get Hoseclamps btw!.