The cheap offset i rescued from the curb doesn't have any way to clean the ashes put of the firebox other than to remove the charcoal grate and start scooping.I was thinking about about cutting the bottom 1/3 of the end plate off and fashioning a drawer I could pull out from under the charcoal grate. The way the intake damper is positioned makes that a no-go. So what about cutting a square out of the bottom of the firebox, add a hinge & latch to make it a bottom dump? Think of the flap on the seat of an old-fashion union suit. I would have to cobble up a flange for the door to seal against, but that's no big deal. Since heat rises, dumping the ashes during a long smoke could be accomplished with very little heat loss. Any thoughts?