best chances of getting a good amount is to put it on ebay and have a good reserve price on it. if it doesnt reach the res you dont have to sell it to highest bid.
if you got all the original blinkers, battery, tail light, and other little bits everyone removes this adds to the value
i am yet to find any magazine tests/articles in ADB or T&T on 82 250/400 Z. i dont think there are any.