All three have been replaced, clicking had thankfully, if only temporarily, ceased. The temp sensor was completely coated in dust, which may have been causing the wrench light for it, unsure at the moment as I need to clear the code and see what it does.
For the record for my own testing sake, both actuators were swapped at 118,780 miles, I'll make note of the mileage if they break. Gonna take the old ones and ask a buddy of mine who does a lot of fine machining to have a look and see if it would be realistic to replace those gears with metal.