just a few things to think about:
do you plan on overclocking?
if you want to OC, you will need the 6600k, which is slightly more expensive. if you dont plan to OC, then your fine.
check for bottlenecks
you are wanting a 1080 amp extreme, but only planning for a 6500...
Im not sure off the top of my head but there should be a problem yet, but that could become a problem in the future.
More importantly, you are spending $700us on a graphics card, but only 200 on a CPU. thats a big difference for your two main components.
check for clearance
The amp extreme is a big card, you may run into size isues trying to fit it into some cases, and the hyper 12 evo is tall. youshould be fine as long as you get a reasonably sized case.