olpanel

I have a 1953 Plymouth Cranbrook Convertible. I have put a 1956 354 Hemi in with approximately 500 horsepower.Obviously tricked out to the extreme; short of a blower. I had to move the firewall 4 inches into the passenger compartment, and a square the size of the motor another 3 inches, and the tunnel had to expand three times the size to accommodate the 4 speed automatic transmission. A Mustang II type rack and pinion power steering with disc brakes and airbags. The rear is now a Currie 9" Ford posi,disc brakes, airbags,and a four bar system. You can still walk up to it and see it stock until you open the hood or look underneath !
Now I want to put a torsion bar back on the front and back. Any Ideas???????? There hasn't been anything "off the rack" for this project. A whole lot of fabrication...
Any input would be appreciated !!!!!!