Help with $1500 gaming build.

Solution
Composed a pcpp with your current items (except SSD since it wasn't in the pcpp listings): http://au.pcpartpicker.com/list/rpNzPs

Your parts do fit together nicely but you're missing CPU cooler (since i7-6700K doesn't come with Intel's stock cooler).

I suggest either AIO water cooling (e.g Corsair H115i) or air cooling (e.g be quiet! Dark Rock Pro 3).