Hey Eric, hey Van Jones, hey all,
I would also take the ready-to-use spindle cable from @PwnCNC.
@PwnCNC has a much better VFD than the Huanyang HY Series crap, the DELIXI Hangzhou Inverter Co., Ltd. CDI-EM61. Unlike the Huanyang, the DELIXI CDI-EM61 VFD has Sensorless Vector Control!
PwnCNC also offers them as Spindle/VFD Kit, with a ready-to-use enclosure.