That's ok, mate
We are sorted, however, it pays to 'search' for info instead of relying on the guides, as there are evidently variations ie: 15mm or 16mm nuts. Also once I had the bolts in, the belt would not fit. Luckily, someone else had the same problem, so I found the problem quickly (also having another 2.6 here to look at helped).
Sorry this has been a long-winded thread, but a lot has been learned. I am no longer a 'spring chicken', that would have done this job with contempt.
Would I do it again ? Probably on the other 2.6, as I know the pitfalls, but the 2.5 looks a bit more of a challenge.
Car started ok, but have not had time to do a charging check. Watch this space.
Oh...and apologies for my rant, but needs must!!!!