Melissa, I use PowerSystems for a lot of my equipment ordering.
How many kettlebells do you need to order? The reason I ask, is if it is a lot and you’ll be transporting them in your personal vehicle, over time, you could wreck the tranmission and suspension on your vehicle (too much weight in the trunk). Is it a possibility to have your clients purchase some of the equipment themselves and bring it with them? This works well for 2 reasons: they learn how to use the equipment and they then have the equipment to use when you are not with them. (teach a fish to swim type of thing!)
Just a thought.
Good luck with your group,