Interesting, I guess the Soesterberg one may be from a different batch then. It's P-51K-10NT 44-12125. I've only got this photo online right now:
DSC_8685_crop by
Jelle Hieminga, on Flickr
Berlin Express is North of Manchester, heading South-west, estimating Duxford at 10.40am.
Edit: ETA now 11.06am