#Aliexpress € 59,12 15%OFF | IceMan Cooler Water Tank for Ncase M1 V4 V5 V6 Support Install DDC pump ARGB +5V 3PIN Transparent Reservoir
https://a.aliexpress.com/_BSxWdU
You should have get that pump/res combo specially for the Ncase.
This would give you more space inside your case instead...