FYI - installed new heat-sink on my heavily loaded system and also put thermal pads on memory chips + it’s possible to close the top part, which is great (I like the HP23 design)
(note the last section)
Used this heatsink : https://www.aliexpress.com/item/1005003955915167.html
However please note I had to modify it - the cutout for BT+2.4GHz antenna must be much wider !!
The bad heatsink with improper cutout :
The good (original) :
Probably next step will be : https://www.aliexpress.com/item/1005004355749568.html
…but this will require again soldering of the carrier board as the threads can’t be inserted in reversed way. Also it’s a question, where to connect FAN, probably will do some research around but maybe someone know ? Possibly in the way it can be controlled ? 
