I'm experimenting right now and haven't gotten anything put back together yet. I tore my BSKD apart and spent the better part of 3 weeks wire brushing and Dremel tooling the bad rust out and reapinting the entire unit in an attempt to salvage it before it became too unsalvageable. I was going to take before and after pistures of it but then thought better in fear of beeing banned for letting my smoker get to that state.
I'll have a few after pics later when I start putting things back together and post them in a new thread, hopefully in a few days.
When I was cleaning it, I got some High Temp silicone caulking and placed it arond the top seam of the box and the door of the smoker. I cleaned the area around the outer edge of the door and spread a heavy bead of the caulking aournd it to creat a type of seal. I had tried it once before and closed the door in an attempt to creat a custom seal but it failed miserably and the Vaselinse I had spread along the rim of the smoke box didn't preent the silicon from sticking. And, I never really was able to get it all cleaned off the box after I did it. Anyway, I'll post more after I do my reassembly and post picks.