[Espeefan]

Dwayne, when I mentioned the screws, I was suggesting the heads would be inside the tanker, and the holes would be blind holes, so that nothing was showing in the outside of the styrene.

I would not try super glue, or any CA glue (same thing). Both will kind of make the metal haze and you probably could polish it off, but I don't think the bond would be very strong. The thing is, if you are painting the trailer, like it looked in the movie, then I would suggest you make the tank out of something else. Styrene, PVC, something like that. It would be much easier bond.