The Transport will be delayed slightly. The rear brake is a rim brake. I started thinking about it and it made zero sense to me to have a rim brake on the back wheel. The bike is a long tail design, therefore all the load capacity is on the back of the bike. By using a rim brake, every time you brake, you rub off a small amount of metal on the rim. On road bikes that may not be as big of a deal, but on a cargo bike, that could make a disaster out of a loaded bike ride. Once the rim wall gets thin enough, it could lead to the rim failing under a load.
I may be paranoid about it, but I really do not like replacing expensive parts if I do not have to. So I called the bike shop and had them install an Avid BB7 mechanical disc on the rear. I was happy to find out that the bike came with the exact same setup on the front. It will be nice to have matching brake components. I also asked them, while the wheel was going to be off, to snag a fender and mount it on the rear as well. They told me it may not be ready by Sunday. That fine by me because I would rather have a bike that is set up and ready to ride, than to get a bike, take it home, take it apart and have to mess with it. I do not want to mess with it, I want to ride it! Also, it has been a crazy work week and I really do not want to work on a bicycle this week. Call me lazy!
The Transport may be delayed a day or two, but it will be worth it. I now patiently await the call to say my new errand runner is ready.