Well went to 230k's last night following his kind offer. Put the car up on his lift and proceeded to try and dismantle the exhaust! No go. The centre joints would not budge. Ended up taking off the undertray and disconnecting below the first cat, this was very easy. 230k did all the work I was stood there supporting the silencer on my head like Atlas until we could lower it to the floor.
Once down the bracket was in a very poor state but 230K built up a great big mound of weld and it'll never move again. However, there were also a couple of small holes so he cut a patch from an old washing machione and welded that in also.
When done the system was again easy to replace. I asked about my low ride height...two broken springs at the front. Then removed the steel sump guard ( an optional extra ) to look at the front cross member... not too bad.
The rest of the underside was in very good shape, especially considering it had never been Waxoyled .
All in all 4 hours, including looking up the EPC and WIS about various things. My point is we had never met before, and he went out of his way ( and his glass of white wine ) to help me. A very large thank-you from me and I hope a few pats on the back from y'all.