Ender.Kaina

So my total budget for all the parts is $1000. that includes the computer itself and a capable monitor (1080p, 144hz larger than 24") 
 
I care very much about the case, not enough to drop to an rx 580, but I really want to get the smallest form factor PC that I can, so the one that you showed me is perfect, thanks!
 
Alright, so I am not sure how much I need to spend on a Power supply, so some help there would be great. I was going to upgrade to 32gb down the line for a Minecraft server, but I think I will go with 2x8gb sticks instead.
 
 
UPDATED BUILD 
PCPartPicker Part List Type Item Price CPU AMD Ryzen 5 3600 3.6 GHz 6-Core Processor $194.79 @ OutletPC Motherboard ASRock X370 Gaming-ITX/ac Mini ITX AM4 Motherboard $109.99 @ Amazon Memory GeIL EVO SPEAR 16 GB (2 x 8 GB) DDR4-3000 Memory $67.99 @ Newegg Storage Crucial MX500 500 GB M.2-2280 Solid State Drive $49.95 @ Adorama Storage Seagate Barracuda Compute 2 TB 3.5" 7200RPM Internal Hard Drive $49.99 @ Amazon Video Card EVGA GeForce GTX 1660 6 GB SC ULTRA GAMING Video Card $219.99 @ Newegg Case Silverstone SG13 Mini ITX Tower Case $57.99 @ B&H Power Supply Corsair CX (2017) 450 W 80+ Bronze Certified ATX Power Supply $51.98 @ Newegg Monitor LG 27GL650F-B 27.0" 1920x1080 144 Hz Monitor $249.99 @ Amazon   Prices include shipping, taxes, rebates, and discounts     Total (before mail-in rebates) $1072.66   Mail-in rebates -$20.00   Total $1052.66   Generated by PCPartPicker 2019-09-24 15:00 EDT-0400