Go, have a look at it. And then take things on from there. It's nice Coz it's black and 3 dr. But it all depends on the condition. And even if it's got no history the car should drive/feel like what it's done. But personally I think you have made a mistake by agreeing a price with him before you've actually seen it.
I did this once, car was advertised for £1,650. On the phone got the guy down to £1,300. Went down and haggled with him and got the car for £850. Then 2 years later sold the same car for £1,600. Result