My right door sticks out at the back thus leaving a generous air gap (for air to escape). Logic says I should be able to bend the metal frame back into a good fit however I thought I should ask others if this can be done easily or even if it is a good idea? Another solution would be to leave the metal frame alone and mount an extra clasp or door keeper device in the back. Also, what kind of metal is the door frame made of? I am reluctant to manhandle the door too much since it has a huge piece of Lexan riveted to it, which I am afraid of breaking. There are already star-like cracks emanating from a few of the bottom rivets. My goal for the doors is to seal them up to keep the heat inside in cold weather.

Thanks, skot