You can find used or open-box MSI Z690-A PROs for $100-$150. I run the DDR5 Wifi variant with a 13700K and it’s been great.

At that speed Z690 vs Z790 shouldn’t make a difference. You might as well put that money towards Hynix RAM instead.

Not a 13600K exactly, but my system with a 13700K idles around 65W (measured from the wall with a Kill-A-Watt).

System specs:

• 13700K, power limited (PL1/PL2) to 165W
• MSI Z690-A PRO DDR5 Wi-Fi, C-states and other power saving features turned on
• Balanced power plan in Windows
• RTX 2070 Super
• 2 monitors - 1 27" 1440p 120Hz monitor plugged into the RTX 2070 Super, and the other a 27" 1440p 60Hz monitor plugged into the motherboard (I’ve heard this setup reduces idle consumption compared to plugging both into the RTX 2070, but I haven’t done a comparison)
• Corsair RM650x power supply
• 5 Arctic P12 A-RGB fans set to a dim green

Skill issue

No context, no budget, no specific links to the particular kits you’re considering, etc, etc

You’ll likely have to power limit either of them unless you have a 360 AIO.

Anything over 5600 CL46 (the officially supported frequency for the 14700K) is technically an overclock. Though most CPUs will do 6000 and 6400 just fine.