This is very interesting topic!Don't want to interrupt, just to mention something helpful for people trying to understand.
2. An attempt was made at such an scenario before, and the resulting Hexagram yielded Wealth on the Self Line represented by the Dog, with a line moving in support of it from a Horse line (Offspring - Horse; Fire - line, as Offspring would support the Wealth - Dog; Earth - amoung the Six Relations). Suggesting that the extract will be complete in the Dog month (the month of the Dog equates to the Ninth Month).
The mentioned hexagram seems to be 51 with 4th changing line.
As all other hexagrams with Xu Wealth on Ti(27,48) doesn't have Wu horse on a visible line.
Should be this: