the fan is 60mm and you need to find 60x10mm fan with 5 volt, I got Noctua NF-A6x25 5V and slightly too big for the case so I use small zip ties hold it together also you need to make your own adaptor male 1.25mm PicoBlade with 3 pins
Someone had done something with watercooling before. https://www.udoo.org/forum/threads/udoo-bolt-v8-liquid-cooling.29577/