I just bought a Bachmann Spectrum HO EMD SD-45 (Santa Fe #5418).  Now I'm looking for the same thing again, only in a different road or cab #'s.  I see many pictures of a #5408 (and found maybe a fellow selling one p/n 11612?).  So the questions is, how many different cab #'s has Bachmann made of this thing and are they still in production, etc.?  I want to MU (multiple unit) 2 0r three together, but I like to give 'em a DCC ID that is the same as what's painted on the side (so I can keep track of them, pardon the pun!)