Hi Max. Here are a couple useful threads:
You would open seams and make your Airstream a sieve if you used any chemical strippers. So soda or other such products seem very possible. Just stay very light on the touch when passing across aluminum.
I'm sure you could drum up very good information if you sought out opinions from your local light aircraft owners or maintenance facilities. They are dealing with the same issues!
Please follow through your posts in this thread and include us in any info or pictures you might generate in this process.