The Memphis Belle pictured was the one that 'played' Memphis Belle in the film (with chin turret removed). It's known as the 'Sally-B' after its owner and has different nose art on the port side.
I'm sure it was a Yak-11 converted to radial too.
There used to be a 109 on the circuit but it was damaged slightly and is on static display within Hendon museum.
I read that they found several DB601 and DB605(?) engines in... erm, can't remember exactly where, but it should mean more airworthy 109s in future.