I'm 99% sure that the old wreck on the south side was a Vickers Varsity. The only other thing which I think it could have been was an Avro Anson but I think it was a bit big for that. Rumours of G-DASI, the old Air UK shed, taking over the role were grossly exaggerated.
On the subject of being at the end of the runway, does anyone recall the British Island 1-11-500s blasting off 14 to Palma and Mahon every Friday and Saturday afternoon in the Intasun and Arrowsmith days? That was always a good laugh, not least watching it stagger down the valley trying to gain height and leaving Leeds quivering in its wake. That was, of course, after soaking anyone standing near the end of 14 with the de-min water injection at the start of the take-off roll. There were a couple of those who very nearly brought a whole new meaning to the phrase "we've captured the localiser".