Computer for PP editing

Not right now, even if the thread starter is building it himself. You see, memory and GPU prices are astronomically expensive right now due to both memory production shortages and the cryptocurrency mining craze. At current prices, 32GB of DDR4 RAM and a GTX 1060 6GB GPU (the recommended minimum RAM and GPU to handle 4K comfortably) alone without any other components cost more than $1000. That leaves less than $500 total for the rest of the build (CPU, motherboard, case, SSD(s), PSU).

Or, he could get an i7-7820K CPU plus an X299 motherboard for around $1000 together - but then, 32GB of RAM would have eaten up almost the remainder of that total budget, leaving him with almost no room whatsoever for even a cheapo case. Or, he would have had to settle for only 8GB of total system RAM and only a GeForce GT 710 GPU - a terrible choice for a discrete GPU these days (as the LGA 2066 platform requires a discrete GPU just to even function at all).

And even an i7-8700 plus a Z370 motherboard would not have left him with sufficient remaining room for a sufficient amount of RAM and a decent GPU, after accounting for the costs of an all-SSD storage system, a decent case and a high-quality PSU. At best, he would have had to settle for only 16GB of RAM and only the integrated Intel UHD Graphics 630 as the system's sole GPU.

Worst-case scenario: If he does manage to fit everything but the CPU and motherboard into that $1500 budget, he'd have to step down to a GTX 1050 Ti just to even make enough room for a dual-core Pentium G4560 CPU and a cheapo H270 motherboard.

To recap: For $1500 he's really stuck between a rock and a hard place, since he would end up with either a system that's severely lopsided towards woefully insufficient RAM and a woefully inadequate GPU relative to the CPU or a system that's just plain weak all around.