I have made some progress on this – after a disasterous counting error, which involved much ripping. I am very slow, but it is all about the process rather than the end point.
I have been using the diagonal pin stitch to start, which has been a revelation (no weaving in ends – well at least at the start).
I bought myself a new light with a magnifier (this one). I thought it was like my other light and was charged using a USB cable, but no it has batteries – 4 AAs. It has made a difference but I find it a bit tricky to orient myself, my hands and the light.
I have been watching flosstube and wanting all of the charts they mention, but I already have two on the go and the cost of shipping the charts from the US is prohibitively expensive (I need downloadable PDFs, but I appreciate that it is easier to pirate these than paper charts).