求$11K內 MATX LSIT

Intel® Core™ Kabylake i7-7700 3.6GHz 8M Cache 4 Core 8 Thread LGA1151
Gigabyte, B250M-D3H, B250, MATX, LGA1151, 4*DDR4, Graphic by CPU
GeiL Dragon White GWW416GB2400C16DC DDR4 2400MHz 16GB Kit (2x8GB)
GIGABYTE, NV, GTX1070 Extreme, 8GB GDDR5
CORSAIR RM650i (Full Modular 全模組) 650W 80Plus Gold Cable Management 火牛
Intel SSD 600p Series M.2 2280 512GB SSDPEKKW512G7X1 PCIe NVMe 3.0 x4 SSD 固態硬碟
WD Blue 2TB SATA3 Desktop Hard Drives (WD20EZRZ / 64MB Cache / 5400RPM)(藍版)

Budget: $11K內
用途, BT, 會FOR日後打機,  睇高清片, 不會超頻
疑問:
1. 呢塊底版好嗎?
2. 求1個推介機箱...因為放唔落大箱所以先要用mATX...
3. 要加散熱嗎?

求幫忙, 多謝!