I would recommend buying a couple of super kits. If you are on a budget, you could get one kit for every 4 students. If you can stretch it a bit, 1 per 2 would be optimal. You do not need any extra tools for Vex IQ other than what comes in the kit for building the robot, but I would recommend picking up some extra kits for some more parts and electronics such as brains and motors. For storage, the boxes that the super kits come with work pretty well, but it you would like some more permanent storage there are some akro mills storage contains that you can check out on amazon. For your computer, pretty much anything works. As long as you have something that was made in the past 5 years, programming should be fine. For that if you guys are in an advanced class, you would probably want to use robotc which is a text code based of c. If you need something more basic, then modkit is a great option. It is a block programming based of scratch. If you have any questions, don’t hesitate to ask and welcome to the forum!