Final step. Some Mig Productions Dark Mud has been added to the firebox sides that show through the frames under the cab to represent the rusty state of that area, but it's difficult to see in photographs. The whole locomotive has been subjected to cleaning up and running tests to make sure that all pickup surfaces are clear of paint. This is achieved by wiping the surfaces with a Tamiya cotton swab dipped into isopropyl alcohol, which will remove even hardened enamel paint. Wheels were turned with the PP9 battery, and the cotton swab gently pressed onto the affected areas.
I'll be interested to read any comments made by those of you who had the opportunity to see this locomotive (and t'other one) during the weekend spent at the Great Electric Train Show.