Hi yes, I have sorted it now, more or less. The ACSD is now removed but I've just tywrapped it out of the way as I'm struggling to get hold of any 3/8" coolant hose locally, to loop the coolant ports on the block. I used to work near a hydraulics supplier where I bought all my hoses, but I've recently changed jobs & location, & I'm stuck with crappy euro-parts suppliers.
The left hander I was referring to isn't left hand thread, just the left hand side bolt holding the aircon idle up assembly in place. They are all right handed thread, just be careful, they are F***ing tight and the internal hex is soft, very easy to strip out. I had to resort to a set of Irwin rounded bolt sockets to remove about 3 of the screws.
My tips for the job:-
1. Remove the plastic covers attached to the inner wing & the wheel to give you the best access.
2. Soak all the screws with penetrating oil.
3. Use a good quality 5mm allen key.
4. Try to remove the idle up assembly first (if you have it). This & the ACSD share a long bolt that goes through both.
5. Slacken off the adjusters on the ACSD levers, this gives a bit of movement of the linkages to access the remaining 2 off ACSD bolts.
6. If you can't get to the bolts, remove the levers and springs from the ACSD, this gives the best access.
7. Have a set of rounded bolt removers ready!
8. Have a oil pan or similar to catch the diesel when you do finally get the ACSD off, you'll lose about a cup full & it comes out quick, more or less in one go!
Good luck with it, mine is now idling perfectly & is much, much quieter.