well that makes 3 series 2 ambos I know of unles it's Mike Cecil't that you've got there.
Any chance of a few photos for reference, mainly of the series 2, but any of the 2a would be good as well
Main thing is time. I've got the doff out of the ambulance in anticipation of removing the whole rear axle housing and suspension to de re rust both the axle and chassis, before moving foward to the fuel tanks and front end.