Well getting nowhere on my search .
After some thought I decided a swb rhino roof rack would do the job as its only for a few solar panels and the swb version is still listed as a currant item. Might even look better being a bit shorter.
New problem , Rhino roof racks won`t sell me one. They say its far to dangerous to fit a SWB low roof roof rack on a MWB low roof van and they won`t sell me one as I`m bodging the wrong rack on the wrong van . Its f***ing 80cm/31.5" shorter and otherwise identical