This is the part list I came up with. Feel free to ask any questions.
PCPartPicker Part List: https://au.pcpartpicker.com/list/hJyqmg
CPU: AMD Ryzen 5 2600 3.4 GHz 6-Core Processor ($188.88 @ Amazon Australia)
CPU Cooler: be quiet! Pure Rock Slim 35.14 CFM CPU Cooler ($39.00 @ PCCaseGear)
Motherboard: MSI B450M PRO-M2 MAX Micro ATX AM4 Motherboard ($98.00 @ Shopping Express)
Memory: G.Skill Aegis 16 GB (2 x 8 GB) DDR4-3000 Memory ($84.70 @ Newegg Australia)
Storage: HP EX900 500 GB M.2-2280 NVME Solid State Drive ($77.00 @ Newegg Australia)
Storage: Western Digital Caviar Blue 1 TB 3.5" 7200RPM Internal Hard Drive ($55.00 @ Centre Com)
Video Card: Gigabyte GeForce RTX 2070 8 GB WINDFORCE 2X Video Card ($695.00 @ Skycomp Technology)
Case: Cougar MX330 ATX Mid Tower Case ($55.00 @ BudgetPC)
Power Supply: EVGA BR 450 W 80+ Bronze Certified ATX Power Supply ($51.70 @ Newegg Australia)
Operating System: Microsoft Windows 10 Home OEM 64-bit ($129.00 @ Amazon Australia)
Case Fan: NZXT FZ-120mm LED 59.1 CFM 120 mm Fan ($10.00 @ BudgetPC)
Case Fan: NZXT FZ-120mm LED 59.1 CFM 120 mm Fan ($10.00 @ BudgetPC)
Total: $1493.28
Prices include shipping and discounts when available