EDIT: Budget included

Hello, so I’m here seeking help with a build I’m currently trying to do. A friend gave me his younger brothers older PC and well some of these parts could be, might be outdated. I recently acquired a EVGA SC Ultra GeForce RTX 2060 for cheaper than the internet so that’s my GPU. Motherboard is an ASUS M5A99X Evo R2.0 CPU is an AMD FX-8370. RAM is 16GB (4x4GB) 1600 MHz Corsair Vengeance PSU is a Corsair RM1000 Doesn’t have any memory, and the case is a mid sized tower that I’d like to replace for something RGB friendly or at least just white with a clear view. Not to sure if the MB or the CPU are great, or if I can upgrade these to be more compatible with the GPU. Ideally I want to use the computer to play MMO’s (FFXIV Shadowbringers) some FPS (Overwatch, Apex, Battlefield, ect) at 1440p (He claims the GPU can even allow me to play 4K?) and the occasional photo/video editing but I have my Mac for the later. All help would be greatly appreciated, thank you for reading this all!