One a side note, the cpu cooler, thermalright silverarrow 130 actually can be rotated 90 degress, which allows you two exhaust cpu heat from the top. Do note that on M1 it will interfere with the rear fan (92x25mm) so I had to remove it.
You'll also need low profile RAMs to fit, I had to remove one of my TridentZ RGB stick since it's too tall.
Suprisingly this orientation does not interfere with side fan bracket
