So basically i wanted Charlie to be an European engine because she already looks awesome with Red wheels and i wanted to give her a reason to still have them and break the livery code. However during my research i have stumbled upon a Belgian Tank Engine, NMBS type 51 to be exact, which has outside frames, and i think if they're the same colour as the running board, they get the job done nicely. Charlie might be a quite old engine, but she still feels young and free at heart, due to being the youngest engine of her kind built in 1905. Credits: HiT i suppose