are there better parts i can use in this 1000 AU dollar budget build?

[Andrew 3584]

Intel Core i5-7500 3.4GHz $264 AUD
Gigabyte (N105TG1-GAMING-4GD) 4G GTX 1050 Ti G1 Gaming $225 AUD
Seagate 3.5" BarraCuda 1TB ST1000DM010 SATA3 7200RPM... $65 AUD
Corsair Vengeance LPX CMK8GX4M2A2400C16 (Black) 8GB Kit $95 AUD
Antec NEO ECO II-550W 80Plus Bronze 550Watt Power Supply Unit $72 AUD
MSI B250M PRO-VD Intel B250 $99 AUD
Microsoft OEM 64Bit MS Windows Home 10 DVD $129 AUD
DeepCool DP-ATX-TSRSWWH Tesseract SW White USB3.0 Mini Tower Case $49 AUD


i am looking at these current parts on http://www.msy.com.au/nsw/auburn/
i am only browsing currently, not purchasing parts anytime soon
im in Australia

 

[Hellfire13]

Run your RAM in dual channel for faster performance and redundancy. Better gpu and psu. Activate Windows down the line... https://www.howtogeek.com/244678/you-dont-need-a-product-key-to-install-and-use-windows-10/

PCPartPicker part list / Price breakdown by merchant

CPU: Intel - Core i5-7500 3.4GHz Quad-Core Processor ($277.00 @ Shopping Express)
Motherboard: MSI - B250M PRO-VD Micro ATX LGA1151 Motherboard ($98.00 @ Shopping Express)
Memory: G.Skill - Ripjaws V Series 8GB (2 x 4GB) DDR4-2400 Memory ($94.00 @ Umart)
Storage: Western Digital - Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($63.00 @ Shopping Express)
Video Card: Gigabyte - Radeon RX 580 4GB Gaming 4G Video Card ($335.00 @ Umart)
Case: Deepcool - TESSERACT SW ATX Mid Tower Case ($55.00 @ Mwave Australia)
Power Supply: Corsair - CXM 450W 80+ Bronze Certified Semi-Modular ATX Power Supply ($85.00 @ Shopping Express)
Total: $1007.00
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-06-04 17:45 AEST+1000

Having said that, you should make an estimation only before you purchase. There are new hardware releases every other day and price fluctuations due to that.