Had an HA saloon some years back and I have a feeling that bits of it are in/on this van! (I scrapped my car and it was apparently bought as a donor for a van restoration.)
Have seen the van around fairly often and also did a few days work for the company when their driver was off for some reason.
Simon, HA is a dirty word in some circles down here - they (HAMC) objected to the local patch club and wanted them all to prospect for the HA. Didn't go down too well from what little I've heard! Now wear different colours and are lower profile than they were 25 or so years ago...