I have now completed enough of the coat to feel it is worth sharing.
As you can see, i have joined the side seams as much as is needed and inserted the first of the panels.
I haven’t sewn in any ends and will leave that to the end in case I find any problems.
I am now going to move on to other things for a bit, partly because there are other things I want to achieve but also because I am finding Tunisian crochet gives me a lot of pain. I think this is because I have to hold the work so tight with my left hand for the return pass and manoeuvring the long hook with my right hand puts a strain on my wrist. I can’t see any way to make it more ergonomic.
This was not helped of course by my determination to get this far as soon as possible in spite of the pain.
In time I think I will add one panel at a time in between other things.