The kits that you purchase from Silver Spike Designs are 3D printed, and are made to order. We generally don't stock kits. So, expect a week or so for processing.
Our kits ship to you still on the supports, unless you choose otherwise. Removal of the supports is not hard, but require some patience and good tools. Flush cut nippers can be helpful. Start by trimming the outer supports first. Clip the ends of the supports where they touch railings or small details, then cut them off at the base. Work a section at a time. Small bulky items such as wheels can generally be snapped off by hand. Take your time!