QUOTE Did the Rebuilt Scots make it to Scotland?
I presume you are wondering if they ever "escaped" from the West Coast Main Line which was their first home in original form until the introduction of the Princesses and Coronation class pacifics displaced them from the prestige expresses. Indeed 6115 Scots Guardsman was the "star" of "The Night Mail" film made in 1936 - "This is the night mail crossing the border..".
I have had a quick scan of "The book of Royal Scots" and whilst several unrebuilt versions were allocated to Perth in the 1930s, from the 1940s onwards it appears that Polmadie had all the Scots north of the border. That does not mean they never strayed from the WCML and visited other parts of the Scottish network. Indeed there is a photo of one rebuilt Scot at an Edinburgh location in the 1950s. In the same way that Scots could be seen in Newcastle having arrived with a train from Liverpool, I am sure that passenger services from Glasgow to other destinations in Scotland could have been hauled by Scots but you will need someone else to provide more positive information.
David