I learned the same lesson about two years ago. My fire was started by the EGR coolant plate. The kid I bought the car from halfway deleted the EGR system, forgot the block off plate. The cooler plate corroded out and caught a small 90 deg. bend coolant hose on the back of the block on fire... I managed to control the fire with a tshirt until a rollback stopped with a fire extinguisher. I feel for you man, and it looks like you have a hell of alot more damage than I did... Although after soldering every wire in the wiring harness back together, only to have a crank/no start sucked. Then the pulling of the head to replace the head gasket and seeing the damage to the cylinder walls and the warped head... Then sourcing a JDM 7MGTE lol. So I guess it ended up being pretty bad... Hope you get everything cleaned up and the car into working order soon enough. Good luck!