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I know I know before anyone says this I know that's a gen 3 NVMe motherboard with gen 4 SSD. They have become very cheap so might as well add one. This way it retains some resell value.
I doubt anyone will be able to come up with a better config, I have cut some corners like using a single 16GB stick but OP can buy another one when he has money (IT'S JUST 2.2K INR).
Yes you do not need aftermarket air cooler with this processor. Intel somehow managed to improve their included stock cooler and while they are not miracle themselves they are better than you would expect. You can always buy an after market one if needed.
Cabinet can be changed to any other as OP likes. I just took whichever mesh one I could see first. It comes with 4 pre-installed RGB fans and magnetic dust filter so it's not bad.
That keyboard is going to break but that can be said for any mech keyboard in that price range so might as well just roll the dice. You don't want membrane, trust me.
Caution/Advice: If you are actually serious about video editing then you might want to get a motherboard that supports gen 4 NVMe SSD because that will make transferring larger video files more quickly.