Mostly I get wasters offering low sums for this, so generally ignore them. I used to help run one for years, it depends on which one. Clubs have different interests, swinging, BDSM, latex, piercing body modification, naughty sauna, stripper sex club etc. Ask him if he's been to any before and what he expects. Tell him your terms and conditions. I bet he'll secretly hope you'll loose control and do loads more. All clubs are different so I wouldn't jump in with both feet before you check it's rep. I'd also follow your personal security rituals strictly as this isn't a restaurant or hotel date.
Is it some get together at a mate's bedsit or an established club, well organised, security conscious organisation? We employed a proper council registered, trained security firm to make sure members were safe, unmolested, cameras removed, gatecrashers and pests ejected. You probably heard of Tudor Simionov security guard who was murdered by crashers on the door of a private Park Lane sex club this new years eve.
Consider that other clubbers won't know your boundaries so you'll have to deal with their expectations and interference as well.