Here is the completed set of sub assembly's with magnets. More detail below.....
One in the rear of the plague monks and one on the "other" side of the plank.
shave off the plastic sprue nub, replace with magnets.
The hole in the chain had to be slightly drilled to fit my magnets.
One in the middle of the front plank, bottom of the plague priest, and warpstone censer basket.
Completed Plague furnace assembly
Everything that doesn't have a magnet just slides into place.
The only slightly tricky part was gluing this arm on. I assembled with the cog pieces, then glued the arm on. disassembled once good and dry.
I glued a piece of sprue here to prevent the back plank from popping up.
Completed Screaming Bell assembly