Using two of the same camera (or two with the same color science) is the easiest way to make the colors match between cameras (less work in post-production.)
Video Production
START WITH THE MINIMAL KIT (THEN GO BASIC, ADVANCED)
Here's the way I would go about building up a kit if you aren't rich, but want to follow the "Always shoot with 2 cameras" method: Get a 2nd camera going, even if it's just a GoPro at first.
I use T-Lighting because it’s faster to set up and less expensive than 3-point lighting (and yields similar results!) T-Lighting is much more versatile because it can be used in spaces with low ceilings.
I take this tip seriously, because I've been through the "burnout" stuff. Yet, if you make your production methods simple, you always have them to fall back on when you’re too stressed to think.
Portability is the main reason I prefer compact gear, but there are cost and speed reasons as well, especially if you're setting up and tearing down all by yourself.