I do my powder coating outside by my kitchen door. I do it in a plastic container on its side. two peices of wood clamp a brass rod that can be raised or lowered and rotated to get all the parts covered, the scissors are there just for show. and once you've finished you can put everything away in the box which is a bonus if you ara as untidy as me
Mine is just a normal kitchen oven that has had a bit bolted on the front of it. Horizontal extension is in fact a
real pain, but extended vertically wasn't on.