Throwing something quickly together using PC Partpicker's system builder gets to $460 for a 12400f, 2x8GB DDR4 3200, case, PSU in the US. This leaves you $540 to work with for the primary storage, GPU and whatever else you need. Obviously the GPU situation currently is still impacted by mining but if we assume MSRP availability there's plenty of space in there to fit in at least a RTX 3060. Even with still current inflated prices I believe 3060's have had fairly decent availability now at an inflated $400. So that would leave $140 for storage and etc.