Simple, assuming you're using Flexi Pro. Which you'd have to be if you're printing with it.
Create the contour in Flexi using either the Effects->Contour or Arrange->Contour menus. The former creates the contour path for you, the latter creates a contour from a path you have created. Either way works just fine. The point being to create a contour known to Flexi.
Send the job to the Rip and Print. Set whatever parameters you need to set, things like registration mark type etc.
When you send the job to the production manager two jobs will be created. One for the printer and one for the plotter.
Print the print job, and then laminate it.
Load the laminated print into the plotter and send the cut job. Follow whatever directions appear vis-a-vis registration.
There you are, the really brief version...