And a bit more, if you `google` xp395,there is quite a bit on pages 1-4,but beware Husqvarna xp395; it was given maintenance serial,date unk.8674m,and probably went to Halton.However in `Key Pub archives`, there is a reference to it being at Bicester in Aug`63 for repair,note,crashed Chivenor 3/1/63.
Austen Associates was tied to Austen Circuses,run by Mr Austen,to the N of Swindon,and he may have bought it from a dealer in Tattershall,who bought a few WWs.He(Austen) had a couple of WWs in his yard,as I went and had a look,having seen them from `Albert` in the circuit at Lyneham;one was `729,can`t remember the other.It may be that the tailboom was changed after it left RAF service.