I put this together.
PCPartPicker part list / Price breakdown by merchant
| Type | Item | Price |
|---|---|---|
| CPU | AMD - Ryzen 5 2600 3.4 GHz 6-Core Processor | $165.98 @ Newegg |
| Motherboard | Gigabyte - X470 AORUS GAMING 5 WIFI ATX AM4 Motherboard | $183.98 @ Newegg |
| Memory | Crucial - Ballistix Sport LT 16 GB (2 x 8 GB) DDR4-2666 Memory | $104.99 @ Adorama |
| Storage | Crucial - MX500 500 GB M.2-2280 Solid State Drive | $57.99 @ Amazon |
| Video Card | Sapphire - Radeon RX 580 8 GB PULSE Video Card | $219.99 @ Newegg |
| Case | NZXT - H500 (Black) ATX Mid Tower Case | $69.99 @ Amazon |
| Power Supply | Corsair - CXM 550 W 80+ Bronze Certified Semi-Modular ATX Power Supply | $59.99 @ Amazon |
| Monitor | Acer - XF270H Bbmiiprzx 27.0" 1920x1080 144 Hz Monitor | $199.48 @ Amazon |
| Keyboard | Corsair - K55 RGB Wired Gaming Keyboard | $39.00 @ Amazon |
| Prices include shipping, taxes, rebates, and discounts | ||
| Total | $1101.39 | |
| Generated by PCPartPicker 2019-01-30 17:31 EST-0500 |
It isn't perfect, and I left everything you requested except I dropped it down to 1 better monitor. It is 27" 1080p which I have no experience with and is not recommended, but personally I would hate anything below 27" even if the ppi is poor.
I also dropped the hard drive as most people do not need that much storage.
You could make it cheaper by going with the motherboard you had listed which is perfectly fine, and by dropping it down to a 24" monitor.