Multiple sources (suppliers) for the same item- Dropship Scenario

Hi Guys,

Need your help with one Drop ship  business scenario.

We have a dropship item which is directly sourced from two suppliers with 50-50 ratio ( or 40-60). The sourcing rule, ASL is in place for the item. One issue is the requisitions that are created from order entry pick only one supplier. Since order management cannot split the supply on the basis of sourcing rules, we have put a trigger which disables the autocreation of Purchase orders from these requisitions. The buyers use the autocreate function to create the POs from Reqs. Now the problem is the Price that shows up on the requistion is either from one supplier