Thanks to Bob and @frogmore for the help and suggestions in getting my setup complete. I ordered the NA bundle along with a few extra CTs and here is what it all looks like with some before and after photos:
My panel in the garage:
I decided to put the IoTaWatt in the wall under the main panel. Added a breaker and attached receptacle to the inside of the stud:
Attached the CTs:
Hook everything up to the IoTaWatt:
Clean it up:
Next step … take it out for a spin. Planning on pulling the data into Home Assistant and creating some visualizations and automations from there.