Yeah the $56 SSD is kind of pointless, you're not getting great performance. You might as well just keep the HDD. I'd recommend getting a 256GB 960 EVO, which costs 2x as much but you're getting twice the storage and 6.4x the speed.
Kingston A400 Specs:
Max Seq Read: 500MBps
Max Seq Write: 320MBps
Samsung 960 Evo Specs:
Max Seq Read: 3200 MBps
Max Seq Write: 1500MBps
Also the life of the 960 EVO is 50% more, 1.5M hours vs 1M hours.
The 3000MHz is not supported on the i7 7700k, only 2133 MHz / 2400 MHz. Your motherboard maybe can support up to 4000MHz, but not your processor. Motherboard selection is okay, VRam is a bit high even with games that use ID's MegaTexturing - maybe align the price into some other performance aspect of graphics.