Hi Chris,
I’m glad to hear you are thinking about this. Properly caring for resin is one of the ways to make sure you have a long shelf life.
It has been our experience that properly handled packages (i.e they don’t fall off a delivery truck and freeze in a ditch somewhere) generally do fine.
Our large resin kits ship directly from our production facility in the northeast via UPS ground. I expect it is two to three days delivery to you. If you want to place an order and are not in a hurry for your resin, leave us a note checkout to not ship until a Monday. That way, the package should be ‘moving’ the entire time and not sit in a cold truck over a weekend.
If you are comfortable receiving packages at work, that will be a better option for you as well. UPS generally delivers to commercial addresses first knowing that businesses are only open until 5 PM or so. Since you are in Chicago, there may also be an option to pickup your package at UPS hub, which means you could have your package even sooner.