Looking at their 'how to' video, Panel Config looks fairly straight forward. We're in the same boat as you with qty, and have decided on the Rail option, though I'm certain it could be retro fitted if needs be.
What we're really interested in is just how much work will be involved in modifying the reel and tape box assembly, so that we can remove the complete unit and replace it with another, pre-loaded cart, for different regular projects.
Because there is no complex mechanical dependency, we'd just need to resolve the electrical interface, and bingo! Would be great if we could convince NeoDen to integrate this feature out of the box. A whole new level in micro-machines for PnP.