Thinking of getting it properly polished and valeted out not to cover anything up just to get he most I can for it, trust me this car is fantastic and I would keep it forever but I just cannot afford to keep it
I don't mean to hurt you. Look, don't waste money on professional polishing and all that bollocks - It is total bollocks anyway. You can't polish out scratches on metalic black - it is glaze over base - Anyone who says you can is talking utter bollocks.
Polishing out solid cellulose colours came to an end in 1995 for flat paint, metallics, about 1989 or so. IT'S ALL TWO PACK PAINT NOW.
If you cut the glaze down to the depth of the scratch, you've removed a load of clear glaze laquer and some paint colour as well - who does that help ?
Give the car a good clean inside and out, then wax it yourself. Then test the market. If you need the money before Christmas - time is of the essence
I'm really sorry you have to say goodbye to a geat car. Used car Buyers prefer an honest deal, you can tell those "scratch away" rubbish repairs - a mile away . Don't freak, just sell as a proper private owner.