friend I am also building on the same platform,
I want to include 5 fans more than 140 including the 120 front for the radiator 360mm which gives a total of 8 fans, the 2 fans under the rgb you have it connected in the node core
and for controlling the speeds you have them connected on the motherboard?
pd:sorry if annoying both too much to ask but I would also like to know the measures of the desktop to fit the whole of the cabinet with the monitor 34'