Hers what I've come up with. Plasma cut the "fingers" out of 1/4 plate steel. These fingers are welded to the tank door. Bushing stock (1/2" Hole) is welded to 1/4" x 3" wide x 4" long flat stock; which is then welded to the tank. 1/2" x 4-1/2" SHC (bolts) are used to glue it all together.
I made 3 sets of these for each door, but haven't welded the 3rd set on yet. I could take a close up photo of them with more detailed measurements if your interested.
Obviously its not to scale. just a idea. The feet would obviously be the contact point on the smoker, and the snout would be the contact point on the door. the only thing I see that wouldn't work would be the contact points, perhaps not enough metal on metal contact to support the weight of the door?
Thats a really cool idea! Not sure how you would make more than one or 2 of them and not have them all be different if you didn't have a CNC cutter of some sort. You could always hing in the middle of the pig, and use the front feet on the door.