Below you’ll find links to helpful resources.
Well, at first visit your local group should have loaner gear available. You will need to bring your own athletic cup though *chuckle*, and probably long pants and closed toe shoes. If you decide you like rapier you’ll want to get your own kit
Helpful cheat sheet showing what armor is required to get on the rapier field. Also includes details about what types of material can be used for making rapier armor.