One point that is worth considering is the platform.
I have a 13700K, and it is a fantastic CPU. Both Intel and AMD are making very good CPUs at the moment.
However, the Intel LGA1700 platform is dead, with the next platform not due until Arrow Lake.
If you are going for a DDR5 board, then I would also consider an AMD AM5 platform, as the upgrade paths are a much better prospect. On LGA1700, you can only upgrade to the 14900K, which is absolutely not worth the money (and isn’t even really a generation).
Regardless, for both top end CPUs (Intel i9-13900K[F] & AMD 7950X), you may find that the RTX 3060 will be the bottleneck in the build. While the current 40-Series isn’t very good value, they are worth considering for a new build.
If you only do static renders, it probably won’t matter, but it may become more obvious for modern real-time rendering (still not sure though).
The dilemma here is clear, that you get 12 GB VRAM with the RTX 3060, and both the RTX 4060 and 4060 Ti have poor VRAM quantity (8 GB). Unfortunately, the value prospect of the 4060Ti 16 GB is absolutely awful.
Gigabyte has a not-great history in the last few years around reliability of their PSUs (but you are going back over a year or two). Their motherboards seem okay.
It’s not a definitive guide, but the PSU Tier List has generally been a good resource:
I’d think a Tier B is probably a useful set for this build. Again, if you have a PCIe 5.0-capable motherboard with AMD upgradability options, you can always go for greater capacity. With Intel, If you want to upgrade from your RTX 3060, a 13900K will happily take close to 300 W at the power rails (I know you aren’t gaming, but you may wish to use a hybrid CPU/GPU renderer, I don’t know); so it is worth considering how capable your PSU is, especially with respect to its efficiency.
I assume you have looked at the Australian:
https://au.pcpartpicker.com/