Requesting pricing early in the design cycle can help determine if the design will fit within the product budget, something especially important when working with flex and rigid flex, where factors such as material utilization and via structure can have a significant impact on cost. Once there is an estimate of materials, layer count, via structure and quality requirements, reach out to your fabricator for a stack up and budgetary quotation. This is an excellent time to start a dialog and ask questions to be sure you are not inadvertently adding unnecessary cost to your design.