Lynn,
The problem as I see it is that DBA is not set-up to deal with Process mfg. issues such as by-products, co-products, and the ability to input user-defined formulas. You would need to create ALL of these capabilities throughout the inventory and MRP management system AND tie them in to the sales order system to be able to address the needs properly.
Personally, I don't see that there would be a pay-off.
Just my point of view, of course.