Aire repairs are welded at least as strong as the original. They are done from the inside but could also be done on both sides if requested
Depends on the size of the rat that chewed the hole and how hungry were they? And where on the boat they went to town. A small factory patch should be no big deal. A large hole i think might be considered aesthetically objectionable
Be sure to inspect the zippers closely on any Aire boat. If under warrantee if these are damaged they should be replaced as its not cheap to have this done out of warrantee
Hey, if you want me to take a dump in a box and mark it "guaranteed", I will. I got spare time.