HI Johnny,
It’s funny how everyone wants a proper lighting kit that fits in a ditty bag; it really is a fantasy not to mention counter intuitive. But I understand the desire (I’d like a full head of hair again too!).
The problem is that while cameras (like the ones you mention) have been drastically reduced in size (although lenses really have not) good lighting instruments are defined by their brute force and large size (or ability to fill at least a large light box like a chimera). In addition the need for efficiency (high output to wattage) and daylight color make HMI’s the ideal choice for portable lighting, yet their bulk is increased by the need for a ballast in addition to the head, cable and accessories. Your question is a constant dilemma for the traveling cinematographer.
Logistically the first consideration should be whether you can afford to travel with a box of lighting kit as excess baggage; if so (I hope that’s your answer) find out how big and heavy the box can be with out incurring “overweight” charge and build a suitable kit.
Remember you’ll need stands, extension cords, bounce boards, etc in addition to the lights themselves. I have never really been able to do it with just one box; at the least, it’s been a box with lights and a bag or box with stands, gets and cables.
If I had to pick one and only one light to use on a trip to light faces, I’d pick a Joker 800 with a Small Video Pro Chimera and a way to “slow it down” for night interiors or otherwise darker locations. You could use ND gel and/or net clipped to the outside of the Chimera. If I could add another box, I’d pack a 4-light Dedo kit, which could be used for backlight, fill light or background lights. With a stand box this is three cases that can do a lot of damage.
JMHO
JS