Hi @dougpark464, I'll do my best to answer your questions below:
Hmm, good catch. It doesn't look like the power cord pictured has different colored wires. One should be labeled neutral and hot. Maybe we can find a better power cord option if not. And yes, the power cord would be connected directly into the outlet terminals.
No, this shouldn't be needed as both enclosure options have they own built in.
As @utemorley2012 mentioned, the Orbit enclosure works but requires modifications. If I personally had to pick between one or the other, I'd use the bigger enclosure.
I hope this helps. Let me know if you have any any other questions or concerns. Happy to help in any way I can.