The camera was like made for being hacked. Look!

Its sensor board is right against right-hand-side wall, and it has a copper heatsinking/spreading/shielding plate on top! So all I had to do was to dremel out a hole in the wall, and seal up the gaps with silicone caulk. Awesome...

Then I attached a thermocouple

Next, I turned a heat transfer copper peg on my lathe

and superglued it to the sensor plate.

Almost ready to go! Next up, sealing (which happened in parallel, but I separate it into a new project log).