Any PSU over 600W is OK.
@u8883 No need for 1000W PSU.
A 500W PSU can handle the RTX 4060 Ti.
Any 1000W PSU is OK.
You can check Black Friday deals on 2-in-1 laptops at Amazon, B&H Photo Video, Newegg.
Currently $549 at Amazon:
The Samsung DU7200 is currently on sale for $897. $200 off.