Are you asking: "where would be a good place to put the RAR/RAL block in the SAP1 diagram"? I can think of several good places to put the block, because I've been doing this for 45 years. Can't you come up with even one? Give us your best guess.
Are you asking if it is correct to add those operations to the architecture, or are you asking if you did it correctly? If the simulator gives the correct results then you don't need to ask us. As to the suitability of adding those operations, I can't think of a reason not to add them, except the result is no longer as simple as possible. Other than that -- knock yourself out.