Despite rumours to the contrary, Kari does really exist.
Here is the back, at the point at where if this were the front, I'd be dividing for the neckline. And I expect that is clear as mud.
Anyway, you can also see what remains of skein number 3 there in the picture. I think that I can be fairly confident now that everything is going to work out nicely, with regard to yarn requirements, despite my compressed row gauge. I'm only going to need half a dozen rows or so from skein number 4 to finish the back - so 7 skeins should be fine, in total. Sigh of relief, I can tell you.