Shane H

https://www.bhphotovideo.com/explora/video/tips-and-solutions/flicker-free-lights-and-why-they-are-important-you

In my experience, you're on the right track. Personally, I would opt for a tungsten fixture and change your white balance to about 4000K in camera to achieve this look, but if you're stuck with the HMI then you might try some minus green (aka magenta) gel as well as the CTO. Sunlight tends to shift towards this end of the spectrum as it is nearing the horizon. I would keep a pizza box or beadboard on hand for tight shots. One of my favorite ways to replicate this is a little 1 stop Cyan (Rosco #4330) on a soft fixture bounced into a ceiling or other white surface (beadboard, silk, muslin, etc.) to bring up the room just a touch and add those blue-ish tones. Good luck with the project and be sure to post screens!

1. Is that a bathroom? 2. That isn't like any drop ceiling that I've ever seen, but I can't imagine that a scissor clamp would have a problem grabbing it. I would definitely bring a Cardellini as a backup if that's an option. 3. I have hung several kino fixtures (4'x2, Freestyle 21, Freestyle 31) from scissor clips with no problem. Make sure you properly attach a safety cable from the ceiling to the back of the fixture, just in case something gives. Also, be sure that you use the remote cable for the ballast, as to not put the extra weight on the fixture. I usually clamp it along the drop ceiling track with 1"-2" grip clamps. Good luck!