Sorry guy's, just realised I haven't got back to you about this...........seem to spend too much time in 'chat' and takes a while to get back down to the garage and model specific sections.
I scanned a pic from my Haynes manual yesterday of the earlier single row of relays type fuse box. I'll post that in a minute. I think I also have some pics of my cabrio (1983) fusebox. Watch this space.