If your thinking of starting a section sometimes not having any launch equiptment can be a deterant.
Best advice would suggest is to just obtain the basics to start a section. This would be an estes or Quest starter set for low power rocketry. This would have all you need to start flying.
If your section is ready for medium power rocketry the best item to obtain is a Aerotech Initiator starter set. This contains everything you need to start flying medium power rocketry. A controller with a mantus launch pad. The rocket kit itself could be used as the official club rocket.
This is all you really need besides your minimum 5 members to start a section.
Some food for thought