I was concerned about any fumes and ventilation requirements. I figured I would deal with that if I could figure out a way to do the job for what he might pay.

Once he heard what kind of money it would take he gave up so I stopped trying to figure it all out. Going forward I will just tell people to write me a blank check if they want something similar.

I did learn a lot so I got something out of the effort. Thanks to all that replied