Mixed costing with Master recipe alone

Hi,

Could you guys help in guiding for the best alternate for the below requirement

Scenario : Material X has multiple production BOM's and Master Recipe's hence multiple production versions.

Requirement : Create material cost estimate with One BOM and multiple MR's with a mixing ratio. Also, ensure the BOM does not change for a quarter

Current Solution :  Create one costing BOM and multiple PV's with the available MR's. Add the mixing ratios for these MR's and run standard cost estimate. Is there any other option that we can consider in this scenario ?

Regards

Rakesh