Always possible it is ex SVN, however looks to have its original chassis, nearly all SVN tippers went through the rebuild program at 3 base and chassis' were swapped about on most, have a look for a rebuild plate, the later rebuilds had fairly rudimentary aluminium plates, one of my SVN F2's has a plate at the bottom rear of the cab, it was one of the few that kept its original chassis. There is still a fair bit unknown about deployment as evidenced by Bluebells thread on a possible Mk4 SVN truck.