Wow Tony, thanks for stepping up to the plate. Feel free to submit this to Drupal. You are by no means stepping on my toes. I borrowed most of my code from other parts of Ubercart. That is the beauty of Open Source Software. I definitely do not have time to be a maintainer on this module, but if you feel like you do, please proceed.

We just went live with our PostBooks ERP system. If you've read through this whole thread, you'll see that it's taken much longer than I originally planned for. I haven't had a chance to install your updates, but now that we are live with PostBooks, I'll get back to my Drupal porjects soon and give this a whirl.