Screaming bell / Plague furnace: Magnetic assembly

I wanted to get bang for buck out of this awesome kit and be able to field either of the two models. This can be done rather simply with a few well placed magnets. Here's a quick rundown of how I did it and where all the magnets go.....

Parts

Here is the completed set of sub assembly's with magnets. More detail below.....

Back crew

 One in the rear of the plague monks and one on the "other" side of the plank.