[MagicRat]

Heaven help us........are you actually going to drive on that thing??
The best thing to do is take it to a tire shop. The beast repair is using a radial tire patch installed from the inside, usually for $10 to $20.
Furthermore, the tire guys can have a good look to see if any of the steel cords or belts have been disturbed.
I have plugged many tires using those pep boys kits. They are considered a temporary repair until a permanent patch is put in from the inside. Some of my plugs have lasted the remaining life of the tire. Occasionally some plugs have started leaking after a month or two.
Generally, if the tire is good, I have a pro patch it from the inside. If its getting old and worn, I just plug it myself.
As for using JB Weld, that's rediculous. The tire tread and carcas flexes and bends as you roll. A rigid piece of Jb weld will wear off and fall out very quickly.