Some setup advice required.

Nice car.
Viking double adjustable shocks are a must on all four corners.
I'd use an Asassin bar on that...except I know it's not period correct. Don't care for pinion snubbers, especially with a stick. Not a fan of SS springs either.
If you don't have an adjustable clutch with a sintered iron disc, get one.
Skip the nittos. lol at an MT tire (tyre down under).
If you can find the correct MP torsion bars I'd use those rather than /6 bars, but if you have to, they will work.