Always with the negativity.
Spares or the lack thereof won't effect you and it doesn't leave a buyer worse off than they would end up being if your old fridge still worked. Just make sure the breaker gives you a warranty for long enough for you to establish that the one he's selling really does work.
I wonder if he would fit it or allow my guy to fit it on site. Dont confuse negativity with foreseeing potential problems. Michelle is on about keeping the bloody van now until next year. I think very much it will be going though!