I have been stripping the paint from the doors using a heat gun and razor blade. It takes less than an hour to strip the outside skin of the door. No dust! and paint come off in big strips and most of the time is down to bare metal. I will sandblast the edges of the doors later.
Video link: https://1drv.ms/u/s!AgQ9-BbdVO39vQ2SM7SR1MkXw4t5?e=bgeOjB
This method is almost therapeutic. :)