Your Pocher facts are different than those I've found researching Pocher.
The first Pocher MB kit (500 Cabriolet) came out in 1975, not 1978.
The fire occurred in 1972, but the factory was rebuilt. In 1981 Pocher became a wholly owned subsidiary of Rivarossi, and production moved from Turin to Como, Italy. Pocher went bankrupt in the mid '90s, twenty plus years after the fire in Turin. Obviously the fire wasn't the cause of the bankruptcy.