I can take an educated guess as to what strings were on the bass originally. Your profile says it's a 1987, so they were probably Kaman.
Like I said, the brass will wear depending on time and the techniques in playing, so even if you put the original strings on it, if the bass is 20 years old, you'll have to deal with it in the condition it's in now, with fret wear, saddle wear etc.
If you want to play the bass tuned from E instead of B, you should, just make the needed adjustments and enjoy.