In this situation I would suggest using an Alternate Layout. Once the content is final, choose Create Alternate Layout from the Pages panel menu. Make sure to create the new layout the same size and orientation as the original and then use the Numbering and Section Options dialog to specify the numbering required for the second catalog. The Print dialog will then let you select which layout to print.
Changing the numbering display affects how pages are indicated in the InDesign document, as in the Pages panel and in the page box at the bottom of a document window. The numbering display also affects how you specify page ranges when printing and exporting the document. However, the numbering display does not change the appearance of page numbers on document pages. numbering in indesign