Hi Adam and welcome to the forum.
Your introduction makes me feel old, as the first loco I can ever remember playing with as a child was a Hornby Doublo clockwork loco belonging to my older cousin. From memory it was tinplate, green, lined in yellow (or red), had a tender and was new ! Later the same cousin introduced me to the wonders of three rail electric locos.
Happy memories and we didn't give a tinker's cuss about how close to the prototype the beauty was.
Enjoy your collection and best of luck.