Panther - I am not certain why the handlebar sleeves have factory-cut exit holes in them for the bar-end shifter housings. However - I can say with certainty that the LeChampion pictured in this same '80 catalog has DT shifters, not bar end shifters. (AKA "barcons")
PS - Don't ask questions about the dollar-value here - The forum rules require that you post them instead in
the appraisal forum. I can tell you that it is a very desirable bike, with or without 100% original components... By the way - the substituted parts you mentioned are very nice - not cheap junk at all.