Thanks guys, I know I'll get there, it is just 'how' I have to work out. Pete, I'll give you a call later today, I hope that is OK.
Nathan, the old trailer body was sitting derelict in a yard for 3-4 years before I bought it with no plates or papers to speak of. It was literally half a trailer where someone had taken a 12" angle grinder and cut the front half off, a write off.
It's Tare Mass without the fit out is 1560kg. I am going to make the fit out light weight aluminium and modular so I can multi purpose it, use it for racing, family camping and to sell merchandise out of.
Peter B, thanks for that form. You would think that the people at the RTA would have offered that form wouldn't you!