I forgot to mention, I am of the opinion that the widely accepted chiastic structure is probably correct. The comment:
One of the first difficulties to which scholars drew attention in the course of the exegesis of Gen 1 was that the number of the works of creation did not agree with the number of days. Eight works are distributed over six days, with two on each of the third and sixth days.
This results from overly ridged expectations of literature of poetic nature. The author was brilliant in his use of 7 and the had the constraints of listing 8 types of living things. There may be some cultic rational behind the splitting of wild and domestic but simply said he had 8 things to complete his list and so pairs a couple up in a logical fashion that kept his thematic chiasm intact.
There is such a thing as overworking a dough. Sometimes a detail is just window dressing for the larger image. In this case the inclusion of 8 things on six days, doesn't detract at all from the Sabbath week outline or the chiastic symmetry unless one gets overly stickled.
Regarding your drawing from Jubilees for 22 acts of creation, we have to remember that this author was himself freely reinterpreting the stories. He shows no special insight into what the original author intended. He adds details and leaves out details in Genesis, he creates a fresh harmonization of the stories in Genesis rather than simply repeating some centuries old original structure. In fact, the chiastic structure is lost due to the author's concerns. I question whether this offers us any help in decoding the structure of Genesis 1.