Those Basset-Lowke models are beautiful, look after it! One of the locos in my Dad's and Uncles' train collection was all unpainted brass and steam powered, however it was incomplete by the time I first saw it, wheels and connecting rods missing, but would have been restorable.
I think it would be very sensible for me to acquire more track, about twice what I currently have, and do another take of a journey around my whole workshop, taking in all my timpani, the BIG drum kit, and my lathe, bandsaw, pillar drill etc., but of course with toys and curios beside the track.