51-70k Budget gaming pc

[Kaching999]

For Power Supply I am going with this

This seems like a pretty new model I wouldn't recommend going with this as there are no reviews and tests online and gigabyte doesn't have the best reputation for making quality PSUs. Instead you should go for this Asus TUF 650 which is a B tier PSU and comes with 6 years of warranty

I would need some help with fans tho as 4000D dose not comes with Fans and I've no clue how many to get and what sizes

The 4000D does come with 2 fans, you can get 2 more, the Antec P12 max are the best in terms of price to performance and noise, 4 fans should be enough 3 in the front as intake and 1 in the rear as exhaust, you can also get 2 more top exhaust fans if you want. Each P12 max fan costs about 950 but if you buy 3 or 4 you might be able to get a discount at a local shop, but if you want to go a little cheaper you can also opt for the Antec P12, the 5 pack if those goes for 2.9k.