.8 is standard car-sheet-metal.

The shape of 'things' should give it it's strength. The funny shapes in the bottom wheren't there just for fun

If you'r using thinker metal ofcourse, you won't need that kind of strenghtening, and while your putting in a (battery?) well, with attachments towards the rear panel and mid section traverse, I don't foresee any problems.

Way to go!

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