running 2 MRP's at the same plant

Hi MRP Experts 

our concern has 2 scenarios we assemble caller FG's and we bash repair for the aforesaid FG type, we cognize precisely our request for each 4th for some scenarios, truthful the thought is to person 2 forecasts 1 for caller and 1 for repair and each forecast volition person its ain MRP tally and lets telephone the caller FG MRP1 and Repair MRP2

the contented is with repair MRP2 arsenic we person an statement with each our clients to effort to bash repair utilizing our salvage inventory to prevention them immoderate many, truthful salvage indispensable beryllium segregated from MRP1 and MRP2 should lone tally connected salvage inventory 

our implementation spouse tested MRP country mapped to retention determination but it failed and some MRP's support exploding connected the works level

then spouse suggested to person 2 plats alternatively than 1 which I cognize it mightiness work, nevertheless this solution was rejected by the absorption owed the complexity of duplicating everything particularly Master data 

 it volition beryllium large if anyone has a solution for this dilemma