Firewall "cleaning"

Add stands/legs at the point where the rear most torsion bars are anchored and keep the front stands/casters as-is. When you remove a good portion of the firewall, the weight of the car trying to fold itself in half presses against the forward door frame and firewall. If you remove the firewall, only the door frame is left to resist that force. Adding the extra stands at the torsion bar points will eliminate the folding force.