i just purchased a centurion elite rs from a junk store to replace my too small 72-73 ross frame. the centurion serial number is kf50617. some parts appear original like the gold araya rims. front hub is suze, the rear is shimano 105 with a 7 speed freewheel (axel is bent) brakes are diacompe royal s. levers are campy. shifters are shimano 600. bars are nitto. it needs bars and a crankset as someone put a deore lx tripple crankset on it. paint is grey with light grey headtube. stickers say tange#2 and made in japan. any ideas what year? 83? maybe?