Thanks for all the help!
I've only run it for short periods so far(1-3 hours) to make sure things are ok. Those heatsinks are beasts and seem to do a great job of cooling the cobs. The driver Meanwell HLG-240h-C which I'm running @ 1750mah does get pretty hot, I have never encountered or used leds before so I have no real basepoint for how hot it should run. I can touch it and hold my hand on it for 5-10 seconds before it starts to hurt haha.
I also may need additional fans, right now the temps ranged from 77-81F which from my googling seems to be the absolute upper limit of what you want it to be at. I'd love to keep it under 80 for sure.