If you have access to a spray gun (air sprayer for painting or one like it) mix up some vinegar and water you get find to ratio I don't remembe what it is. Using the air sprayer to deliver the mixer. This should put the mixture into the paper and break down the glue. I did it with a friend a few years back and the paper came off very easy. The only thing is the room will smell like a salad till you get the vinegar smell out
GMD...