Pretty much that is it Geoff, think ours was a light green colour, memories a bit vague on that. Our van didnt have a side window on the road side, there was an internal galvanised water tank bolted to the wall in that spot, from memory the sink was a galvanised dish that sat on the bench, front couch and single rear bed, A fold down table off a shallow wardrobe door ..
My bed was the front couch, older sister had the rear bed, two brothers slept on a home made 1/2" water pipe and spud bag double bunk bed and dad was on an old Army stretcher on the annex floor . Later we got a VW Kombie that my older brother drove, So both my brothers slept in that.. He drove that for nearly two years before he decided he better get his licence .
Think our Zephyr was a bit smaller than that one, thinking that one is a six cylinder could be wrong .
Interestingly the bloke we sold the van too, told us years later, that when he ended up wrecking the van at the local tip { it was rotted out ] when he broke it up, about 300 pound worth of old money fell out of a wall .. Wished we knew that much money was hidden in it . We were flat out rubbing two coins together most times .