Work Order Costing with Sales Costing

I'm trying to create a Crystal Report that will show the costing of work orders, but of course, they had to add in a twist.  I need to be able to show the sales cost along with it.  It would kind of be like the sales invoice line inquiry where it shows the net price and the cost price, but instead of it coming from the invoice side, I need it from the work order side.  Anyone have any suggestions or have a report like this?

Thanks