Has anyone shot CO2 into a tire? How many of those little dudes does it take just to make it ridable? I could see a Monkey Grip plug kit and a small electric compressor going into my empty air filter box.
Also... there are plug kits and there are plug kits. Go to a higher end auto parts store (Like NAPA or O'Rielly's) and find a kit that has a real reamer, meaning it has a T handle that you can put some muscle into. If you have ever plugged a tire you know that it is almost impossible to shove one of those reamers through the steel cord, especially on a flat tire. The way I plug car tires at the shop is remove the nail or screw, inflate the tire, ream the hole using a drill with a 1/4 inch bit, and push through the plug. I the usually set the plug on fire to melt it so it seals better and then check the tire pressure. Even in the shop it is a bear and not easy to do. On the side of the road it may just suck...
That also brings up a point, you will need something to pull the nail or screw out, usually a good pair of Dikes, and those don't come with the plug kit.