No it wouldn't, that is tantamount to me being scammed,. I offered him a settlement of $1250, that is what he will have to pay.
Money is fungible. What does it matter if you get $800 from him or $800 from someone else or $800 from him indirectly through someone else. Obviously you are willing to settle for less than $1250 otherwise you wouldn't be offering it for sale.
It's a matter of principle and unfortunately pride. I cannot bring myself to sell my losses to the person that lost it for me so they can profit.