Honestly mate, I would not take less than 8.5k if I were you, providing it is in the “immaculate” condition you claim. Not a dime less. Cash or bank cheque. The car you have isn’t ‘a dime in the dozen’ compared to the other clapped out VZ on the market.
Just please remember that there are a lot of ads for cars (facebook, Carsales, gumtree) that are listed quite high. If you follow these ads, you will possibly see that the price drops over time from the seller because the price is so high.
Also bear in mind that only a sensible person or collector will pay a good price or even consider higher priced cars which are in good condition.
For example, say you were a P-plater hoon (I don’t care, I’m not judgemental) looking at a VZ. Would you pay dollar for a clean, unmolested version, or would you try and find a cheaper VZ. No point paying top dollar for one and then modifying/ trashing it and obviously lower its value quite a bit.
Just my two dollars worth