Picking up a new 2014 189FDS on 11/8 then it is headed for storage. I've only owned popups and I was very careful to seal every thing with silicone underneath when I got it. Hoping when I take delivery they will have the unit indoors so I can crawl underneath and seal any gaps I see. what product have you all used to seal gaps in the underbody to prevent mice from entering? I really would like to be the first to use the camper, not a rodent. Any other helpful hints when I take delivery would be greatly appreciated. I can hardly wait.