You might want to just follow the NA/AA type model for a support group for "rules" on group discussion. You also might have to look at 1. where to have it 2. how much it'll cost (buying/renting/borrowing a meeting space, handouts) 3. how often (weekly, bi-weekly) 4. Who is allowed (sometimes pedos might try to infilitrate to get their jollies off or disrupt) 5. Advertising/promotion (newspaper, news tv--if suport group they'd probably list it daily/weekly for free like the do NA/AA) 6. non-profit set-up (small biz incubator, chamber of commerce, local AA/NA might help you, or you might need a lawyer) 7. Employees/volunteers for non-profit (what if you croak? 8. whatever other impediment/issue to it that could happen.
Non-profit set-ups can be a full-time job without any money coming in on top of it. Think a business without any products. A support group would be easier but might have upfront costs to promote, meeting place cost, etc. Good luck. Great idea.
A guy opens the front door and sees a snail on his doorstep. He picks up the snail and throws it across the street in a neighbor's yard. A year later, the guy opens the front door and the same snail is on his doorstep. The snail says, "What the f*ck was that about?"