if you want to get the car for $14350, offer something like $13000 or less then start increasing in small increments, sell the car down like what you have mentioned eg, no service history, repairs for bonnet, tyre wear, rego things machanic find wrong, be confident because hes more keen to sell the car then you want to buy it, dont seem too keen on the car... i got 3Gs of the asking price of mine because i had control on the sale...good luck with it