@arsenicrain if I were building a light for a smaller footprint space, I would use:
(3) cx
a 3070 per MW HLG185c1400b mounted to one 30-36" 5.886" heatsinkusa profile. For a rectangular grow space, like a 2x3 or 2x4.
For a square grow space like a 2x2 or 3x3 tent, (4) cx
b 3070s on a mw HLG185c1400b and mount them to 2 shorter heatsinks. You might even get away with using the cheaper profile like I used. The 4.850" actively cooled. My cobs are only running at 700mA, so that allowed me to go for the cheaper, thinner profile heatsink.
For a small space, just make sure to get a dimmable driver if you can.