Setup of different elements

I am planning a music player for my music, currently loaded onto a Sonnics 500GB External Portable Hard drive USB 3.0 (500+ CD’s).

The other items I have are :-

A Pi-4b

DAC - HiFi Amplifier 25W Class-D Power AMP Hat TAS5713.

ELECROW 5-inch Touch Screen Monitor 800x480 TFT

Also considering adding :-

A RP2040-based power management HAT

I need some help to confirm how these would be connected to each other.