Until you know the condition it is impossible to say. I've had 4 L200s and love them. I can't see the point in a pickup unless it is going to be working for you, loading and unloading an L200 isn't that comfortable for everyday household use and just to put the shopping in the back is not as easy as you may think, it is high and the tail is heavy (only saying incase you are not able to jump up and down from the back every time you want a bag of spuds).
The twin cab is great for getting small people in the back but if over 5'9" then you are going to have a back neck by the time you get anywhere lengthy.
It is sometimes worth paying a little more for the sakes of knowing where the vehicle has come from, you can then go back to them if you have any major probs in the first few months. I'd not pay 12,000 though, for sure!