Well I got it sorted. Mine is the EMD demo scheme no. 100 just like in the builder’s photo. Lionel did a gorgeous job on the decoration. Looks just like the builders photo. Even has the letter ‘F’ at the front of the long hood, although Lionel chose to ignore this.
I did dig in and made all changes at the motherboard. Swapped red/black for direction, red/blue for headlights, and swapped the coil coupler leads between their respective jacks. Now to search my dry transfers and decals for appropriate letter ‘F’s ! ! !
have a good one!
AC