I cannot offer a flight in a DC3 but you can look inside a 1944 C-47A Dakota at the RAF Metheringham Museum in Lincolnshire.
https://www.metheringhamairfield.co.uk/dakota-kg651.html. Sadly the museum is closed at the moment with Corona Virus restrictions but when it reopens we allow full access, you can sit in the pilots seat or on a Para seat. It is a former Air Atlantique aircraft, last used for spraying detergent on oil slicks at sea, that we are restoring to look something like it would have back in 1944. It will not fly again and we are currently in the process of housing it in a building to preserve it for the future.