Figured out some conditional filtering and publishing rules in Google Spreadsheets. This page is selectively published from my larger inventory sheet of every pen I've ever bought and sold.
Jekyll
I migrated this site from Drupal to Jekyll today. Given that this site is updated only infrequently, I thought it might be a good idea to use a publishing system that doesn’t need quite as much ongoing attention as Drupal. I managed to port the Neewee theme in use on the previous site to Jekyll. Will give more details when I have the opportunity.