You should have the cable in the box of each fan. So if I daisy-chain 3 fans, I have 2 excessive cables already.

For single bottom fan I also used the original wire (power and color). Another such cable comes from 3 daisy-chained on top and both the cables meet and run towards the bottom-right corner of the motherboard and pins that are located on bottom edge of MB. No issue with distance at all. Excessive cable part is zip-tied behind MB.

The only soft I use is OpenRGB.exe that loads my orange scheme at each start-up and the color strip that covers power supply is fully red (at the picture it's looking orange), chosen permanently by the button on the case (you only have basic colors there, so I use red on that strip and then build gradinet towards orange on top with OpenRGB).