One thing you might consider is going to a furniture refinishing shop that in my area anyway has a big tank of stripper. They dunk the whole frame in the tank and eventually (I don't know how long they leave it in) most of the paint is gone. I have a very big pressure sandblaster that gets rid of any of the residue. A pressure type of blaster (compared to the more common suction type) uses a lot lower pressure and has a much higher flow of media.