Ditto on a thorough frame inspection before beginning any cosmetic repairs. Where were the tiedown straps attached? Enough force to break heavy duty straps has to go somewhere, and the attachment points are the logical places to look for damage. Good luck!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!