Cooling question with oem style K Swap

Hello, i'm swapping a k20a3 into a 99 ek hatch, i've got almost everything figured out minus cooling. I am running an oem ecu and wiring harness, i know the b/d coolant temp sensors are different from k coolant temp sensors. my question is what exactly should i run sensor wise? The hybrid racing K Swap sensor seems to be the answer but i'm unsure where to install since i don't want to delete my icav. Thank you very much. - Garrett