Next week our weather is supposed to be a lot better, so I may get it painted, and add some gaskets to the door like you did. I noticed on the door there is a lot of slop, it can be pushed in a good 1/4 inch or more before it makes contact with the box, was yours like that? The new never used box I got from the owner is the same way, so I guess they are designed that way. Have you added any fire brick, or the heat diffuser on the inside of the box? I have the brick in, and have raised the fire grate, but do not have a basket as yet. Also have the metal for the heat diverter, but have not fashioned it as yet, lots to do.
When the going gets tough, I take more fiber.