Hi Simon,The basic bulkhead kit is aftermarket, normally comes with a glass load space window but I changed it to a solid trimmed one amongst a load of other "improvements" (read: ideas that took ages to make work...). Worth it though, and I love that it's not obvious from the outside.
I know it's been a while, but any chance you could point me to further details on this bulkhead (been searching, but no luck). I also now have to consider the family's transportation needs and really want to get a Sprinter again. My ideal is something similar to your layout, but in a MWB as I don't really need as much rear cargo area.