How do you attach sponsons to a 93 750 ss xi?

[Dirtfishing]

I have some damage to my hull and one of my sponsons is all busted up so I have removed both sponsons so I can re-gel coat the bottom half of my jet ski. I am just hoping that there is a way to attach some new sponsons other than pop rivets. The backside of where they go is sealed so a bolt and nut is out. Is there a glue out there I could use as I am not too excited about drilling holes in something that I just sealed up.
Thanks

[steve45]

Drill it and use pop-rivets, just as the factory did. I'm sure the pop-rivets were stainless, probably 3/16".

[Dirtfishing]

Thanks...will do.