I have had for years an unused Hornby Railways RS.508 Flying Scotsman set (with exhaust steam sound). Boxed with electric locomotive, 2 coaches in GNER livery immaculate condition.
Is this common or is it likely to be worth anything. Thought about selling it to help raise money for my wife's charity event later in the year but concerned an unscrupuous dealer may rip me off.
Where is a reliable place to go for advice in UK?