Does the ad say that they come with an acute matte screen? Or do you just think that they do cause they were sold with them originally (a lot of 501 got the better screens taken out for simple ones.
If you buy a Hassi - it really doesn't matter which model you buy - it's the condition that counts. There are a lot heavily used ones in the world with some problems- so make sure you can test them. (I have some and know what I am talking about...) Concerning the screen: You also should think about WHICH Acute-Matte screen you want: plain, Grid, split-image etc - this is more important than the difference between "D" or non-"D",
good luck