I want to buy a used 350z can i do it?

Ok, so i found a deal to buy a used white 350z with 55000 miles on it for $14000 i am also 18 years old with no credit history, but i can put a down payment of $3000. I make about $1000 every month and have been working for about half a year, i don't have any monthly expenses and i wont have to pay for insurance just gas and the car. Is it possible to get one with no co-signer or credit history? What should i pay for it a month and for how long? If i cant get it without a co signer how long do you think it will take to build my credit history good enough for me to purchases one?