Train to Trolley

I normally set up a small village for the holiday season. I have a train with a small circular track. My original plan was to make more track pieces to encircle the village but I thought a trolley running thru and around the village would be better. I modeled a carriage to fit over drive unit... then I decided it needed head and tail lights. had to double the batteries to power the led's. without the extra battery a bracket is needed to support the carriage. the different track sections can be customized using the OpenScad files - - un-comment the module calls to select the section.