you'd better be sickin' yer mom's duck. what a nice lady. my first car was a 86 Chevette with no driver's side floorboard and rusted out brake lines. this was 5 years ago. certainly i replaced the brake lines, yet the floorboard was reminiscent of the flintstones.
as far as the taillight fog goes, you can bake it for 10 min. at 200 degrees in the oven and once the moisture is dried up you can use silicon in any area where the seal is broken