Hi cozywitch,
If you can wait until 21st Aug (less than 2 weeks away), Intel will be launching Coffee Lake CPUs, then it's better to wait and then make a comparison between Intel & AMD. You can always buy the rest of your components first (besides the casing) while waiting for the CPU.
But if you need to buy your PC now, I have the following suggestions (shop names in brackets). Ryzen 3 can be overclocked using B350 motherboards. Prices shown before any discounts:
CPU & MB Bundle: Ryzen 3 1200 & Asrock AB350M Pro 4 @ $297 (PC Themes)
RAM: G.Skill 2400Mhz 8GB @ $90 (PC Themes)
GPU:
Palit GTX1060 StormX 3GB GDDR5 @ $298.50 (Lazada)
SSD:
Western Digital Blue 250GB M.2 @ $136 (Lazada)
Hard Disk: Toshiba 1TB 7200RPM @ $63 (PC Themes)
Casing & Power Supply Bundle: Tecware F3 & FSP Hexa+ 450W @ $80 (Tradepac)
OS: Windows 10 @ ~$12 (Carousell)
Total Cost = $976.50
For further discounts on Lazada, you can use their Citibank credit card promo code (OFFICIALCITI) for 8% off (capped at $20), LiveUp (5% rebate) and Shopback. Keep a look out for other credit card promos as well.
Details on LiveUp and Shopback:
https://www.liveup.sg/
https://www.shopback.sg/lazada