Just a quick catch up to say that I have now gained entry into the axle area by removing the seat, like many things, it's easy when you know how, getting a spanner on the end of the top bolt was a pigs job though, but I did it in the end. For the moment I have refitted the original Bilstein which came apart, but will fit my newly aquired AVO shocks [thank you John] sometime over Christmas, when things get a bit much, and I need to retire to the garage for a while.
Thanks to all who came to my rescue, I could not have done it without your advice.