The replacement stalk was a good one, it came off my other car.
As you say, it must be a short as it blows the fuse with the stalk in the middle.
This morning the fuse blew again followed by plumes of smoke from under the dashboard, I'm hoping that the broken fuse element landed on some insulation or the sponge at the back of the fuse tray and smouldered. The car still starts and runs and the smoke went away. First time the fuse blew it landed on my wifes bare foot, she says it hurt..!
If it smokes tonight, I'm going to push it into the street and let it burn...