like I said put it down to experience not much else you can do if it was a sold as seen deal – what’s the ebay rules on car sales??
I suppose your options:
1)fix it and move on, enjoy new vehicle.
2)Don’t bother sell it on and get someone else threatening to batter you for selling a faulty vehicle
I have bought loads of second hand cars and generally you have to be prepared for a few things to be repaired/replaced.
It was a good deal I guess so you chose not to buy one from a dealer that offers warranty etc