Definitely a good price. If you can talk him down just a little, and decide you don't like it, you'd easily get your money back if not a little extra. Even at the asking price, it could easily sell for the same assuming everything's in good working condition. They are great basses!
Regarding neck profile, it will depend on the year. ~2000-2009 will be the thicker profile, and pre-2000 and 2010+ are typically thin necks (even with the pictures of the back of the headstock, I can't make out the serial number, so you'll just have to ask. Last two digits are the year). It's all personal preference, but with the 4 strings, even the bigger necks are typically not too offensive to most. It seems to be the 5 string profiles people dislike the most. Compared to a jazz bass (at least the current models out there now), the thicker profile of Warwick is only a little bigger IMO. Mostly in the shoulder of the neck (a little flatter across the back and goes a little wider...more of a D shape, compared to a jazz bass with a more rounded C shape). As I said, though, at the price it's definitely worth the try and see if you like it. If you do, you'll have a great bass! If not, someone else will get a great bass as a very fair price!
