If it were I, I would drill a series of holes in four places (north, east south and west) or so on each hoop and run a screw through the hole into the staves. Maybe on the head (or chime) hoops (top and bottom) I would run screw into each stave. I would not worry about keeping water in it and I would add a bung for character.
Trying to reason with a woman is like reading those software agreements you see online. You just go through them quickly and hit, "I agree." Rocky