With a name like shagger its windowless all the way.....

But to answer your question - if your after a genuine sandman, and i mean chassis matching, Original shell, original engine, with log books and painted and trimmed as it would of from day 1 in a colour you absolutely love.... Then the windows are irrelevant.... Just buy it.....

If your worried about resale value then you should never buy any collecable car..... The prices go up and down more often than a brides nighty...