Update for anyone needing this as well.
Currently running the exact same set up as @BigJon, down to the USB-C cable. The hard drive looks great with a white cable and white box matching the Wii.
Running Wiiflow with FAT32 and 32kb clusters...
I may try the new ram site, and download more RAM to my Switch. Not sure if ddr3 is the right ram
for it tho. Edit- no it uses floppy Ram, just like @AncientBoi