Very nice build Mike. You've cleaned up the tabs exceptionally well.
I was surprised to find how few models are available of this venerable speed record breaker. The Hornby one is just a bit eye-watering I agree. I felt sure that there MUST have been a MicroModel version issued, but research shows that although they did put out a Blue liveried LNER 4.6.2. Pacific A4 Class loco, it wasn't specifically the "Mallard". Perhaps it was issued before she made the run.
Interesting reunion of Pacific Class Locos ...
https://www.dailymail.co.uk/news/art...f-century.html