Hey I need to get some help my lid i got from a bbq won't fit its off by a half inch maybe more. If i just sit the lid on top of the drum it sits on the drum, but not over the lip. When I try to fit it over the lip it off by a half inch or less. Sorry I've been hitting the drum and the lid with a 3lb hammer but don't want to mess anything up really bad. Any help would be great. Also sorry for my spelling and grammar.