What a nice project. I know of two Hastings that were out of use at Malts, one WJ325 a C4 and WJ328 a C2.
The picture of the nose section is a C1 or 2 by the position of the markings so its likely WJ328. Is that part of the aircrafts name visible which would probably confirm which aircraft it is from.
Been discussed here before http://forum.keypublishing.com/showthread.php?t=33684&page=2

Richard