I have never seen anyone just shoot one gun. But I can tell you that if you show up, after getting a hold of the club marshall and making arrangements, you should be able to be equipped to shoot the whole match with borrowed gear. Go to sassnet.com look for the affiliated club in your area, some places have more than one, and get in touch with the contact person. Never heard of one who was not willing to help get you out to check it out. Beware! It can be habit forming!
I usually have enough with me to help get someone out shooting if they want
MDJ