Cheers Andy, sorry I missed seeing your post.
Well I've had the rear seat in for a couple of weeks now. We used the van for a long weekend in Cornwall and it was great. The van worked for us beautifully, gave us plenty of room to sleep my partner and me plus our 4 year old and 18 month old in his travel cot.
Rubbish pics of the rear seat but you get the idea-
I've just bought this for a bit of fun. Oh and it matches the van! Its a 1990 16v with 165k on it. High but runs nice, pulls well and drives smooth. It got electric windows, sunroof and mirrors, quite rare I've read.