My grill is kept outside and I'm looking for a sealed container big enough to hold my sear grates, spatula, grill brush and aluminum foil. Obviously I need it to fit on the rack between the legs.
I use a full-size hotel pan and lid. Its dual-purpose holds all the stuff you mentioned above when the smoker is idle. Can be used to hold meat when it is ready to serve. Its is not sealed but it keeps everything together, dry, and dirt-free.