Will this build work

Solution
It will work, though here are few points to think about:
* for 1080p@75Hz monitor GTX 1060 is more than sufficient. GTX 1070 is great for 144Hz-165Hz monitors or higher resolution.
* To fully utilize GTX 1070, an i7 processor is required. with i5, in many games ~30-40% of GTX 1070 will be wasted.
So IMHO, option 1 is to use in your current build GTX 1060 instead of GTX 1070
option 2 is to add ~120$ for the i7-6770K+Z170 MB. And to think about higher res (1440p) monitor to justify the GTX 1070.
It will work, though here are few points to think about:
* for 1080p@75Hz monitor GTX 1060 is more than sufficient. GTX 1070 is great for 144Hz-165Hz monitors or higher resolution.
* To fully utilize GTX 1070, an i7 processor is required. with i5, in many games ~30-40% of GTX 1070 will be wasted.
So IMHO, option 1 is to use in your current build GTX 1060 instead of GTX 1070
option 2 is to add ~120$ for the i7-6770K+Z170 MB. And to think about higher res (1440p) monitor to justify the GTX 1070.
 
Solution