Skip, On a driver that is really the way to go. I hope you have all the lights off, that is a big rust area on the 6's. Just a little advise, buy some seam sealer and cut the smallest hole you can get is out of the tube, run it in the seams under the headlights and tail lights, down the rear top fenders and rear panel by the gas filler. Get a tooth pick and go at a 45 degree angle to shove the sealer down as far a you can.
This will keep out a lot of rain from the top side. wipe off all the excess sealer, of course. Not being able to get paint on the inside of these seams can be a problem down the road, just as information.
Wayne