I don't see what all the hoo haa is about, i do this all time albeit with land and commodities 90% of the time i don't even see what im selling.
The chap has lost his job which is never nice and had clearly had to see a lot of bits of his car which he would have rather kept who cares if he makes a bit of cheeky profit on them he £300 isnt bad for all that lot considering its not made any more, if anything its your fault for under pricing them some people get ahead in life some people take a loss i know which id rather be.