Since this thread popped back up, I figured I'd add a pic of my 1983 DX-4000 here.
Mine is mostly all Suntour, with Cyclone M II gear changers, the original Sugino Crankset with new chainrings, two fresh wheels and a pair of Michelin Dynamic tires. I also added Suntour Bar End shifters this time around. Its always been one of my favorite bikes. Best of all its a large frame model, at 26" its at the upper limit size wise of what fits me but it's been one of the most comfortable road bikes I've ever owned.