Going off The Pook's build:
CPU: AMD - Ryzen 5 3600 3.6 GHz 6-Core Processor ($199.99 @ Newegg)
Storage: Team - MS30 512 GB M.2-2280 Solid State Drive (44$ @ Newegg)
Storage: Seagate - Barracuda Computer 2 TB 3.5" 7200RPM Internal Hard Drive (55$ @ Newegg)
Case: Fractal Design - Meshify C ATX Mid Tower Case (100$ @ Newegg)
Power Supply: Corsair - TXM Gold 550 W 80+ Gold Certified Semi-modular ATX Power Supply (70$ @ Newegg)
I cannot find any GPU in the 200-400$ range that is really worth looking since the Super are coming. Not sure how much is the cheapest RTX 2060 Super will be. This RX 5700 is the only gpu worth considering at 350$ BUT it is a reference card.
EDIT: Just saw the Super 2060 is now available. Just decide between the two. BTW, X570 motherboard and the RX 5700 use PCIe4.0 if it matters to you.
Review from TPU.
OFF Topic: Do you have Property or Renter's insurance? If not. you might want to look at it.