"Layout 3" is the one you're looking for. You won't find an 8K for business, or those seats on row 39, for selection even though they exist.
8K is reserved for a pilot to rest in, and row 39's seats are for FA's to rest in.
As for shifting to Rouge... I can't see that happening with the high volume of business traffic to IST... that alone should normally cover the cost of the fuel for a standard AC flight!