Hi.  I am getting back into this hobby after almost 40 years.(now a crusty old senior).  I have a Bachmann EMD GP38-2 With Wisconsin Central Badging that is not dcc ready.  I have no box and no manual for this unit. Are there videos, instructions or any solid advice that will lead me to a good result? There is a number on the fuel tank, K190912, but I don't know if it is the loco part number. It has a circuit board for the lights and wires soldered to the engine(motor) casing