I postend the first 2 hours of this Dutch mixing contest 2 weeks ago. Ton send me the 3rd and last hour today, mad props to him. This last hour contains the voting, so be prepaired for a lot of dutch talking :-) But, at the end (46-55 min) you will hear a live mix by Ben Liebrand. This early work from the Dutch mix master is very rare.
1st and 2nd hour, check: http://old-school-hiphop-tapes.blogspot.com/2011/01/dutch-home-mix-championships-1983.html