Need help selecting a Spindle and VFD

Hi all,
I am completely new to this as you can probably tell. I recently bought an old Gerber Dimension 200 for cheap. It’s a beefy chassis that will allow for a great machine by doing some upgrades. I’m doing a complete overhaul of electronics, spindle, steppers, limit switches etc. All of which will be run off a 7i96 board with the SpinX1. I am a bit confused on how to choose a spindle. I’d like it to integrate with the Mesa board well obviously. The wiring just doesn’t make sense to me on what goes where. If anyone has a solid recommendation for a spindle kit or the like please let me know. Will only be doing wood and aluminum, with the occasional steel sheet. Thank you guys for your time and knowledge.