Efficient MRP stratergy for this business scenario

Hi All,

Business process being followed

1. Business upload PIR for whole year at once and planning is done on that i.e. Made to stock.

Business is using strategy 10 but they want PIR to be reduced on GR against process order.

Also, they want stock to be considered so they dont want stratergy 11.

I have asked earlier about combination of these two stratergies but I guess thats not possible(std). What will you folks suggest here?