
If you’re pawning it off then just describe the current condition: that the thermostat is broken.
If you modified it then sell it as spare parts/scrap or give it away free.
If you’re doing DIY for personal use or as specifically commissioned then sure, modify how you like. If you’re always putting the same amount of stuff of the same type in the fridge then you could maybe get a timer working after lots of trial and error, assuming the fridge is in a climate controlled environment (constant temp). It will also not do any defrost cycles so frost will build up rather quickly.
Anyways, don’t burn your, or your friend’s house down.
Im working my way up intensity to build an immunity. I’m all the way to class IV indirect. Hoping to achieve direct by the next eclipse so I don’t need my Raybans.