Thanks RATTY but but but, my main objective is to make POPPY as comfortable as possible. She is a 2001 TD5 and is not very noisy - the stereo sounds fine inside but the rear area is van like and was totally bare, she was probably used as a van by at least one previous owner. We want to use her for purely on-road recreation - we just both love landrovers. Insulating the back is a doddle and cost very little but I expect it to further cut down road noise and make the vehicle somewhat warmer. The campervan aspect is merely a bonus as if we go off seriously with the intention of camping we will take the Aztec Haven tent which we have recently purchased. We did spend over an hour at the start of this 'relaxing' in the back with temporary supports (much to the amusement of neighbours). The upshot is that if we were travelling and had found a good pub but no hotel we might just crash out for night in back of POPPY. Possibly my saying this is a 'campervan conversion' is misleading, what it will be hopefully is a much more comfortable rear area in which we can relax, have a cup of tea and if too far from anywhere - we can crash out in it.
This is out second landy, we previously had a series 3 which was much more spartan and though we loved POPPY1 we have moved on (and we are getting older).