Love the car. You mentioned that you had to replace one torsion bar. The '57 Chrysler products had a metallurgy problem with the torsion bars. (They were redesigned for 1958) If you have a source for the other one, I would suggest you replace it also for safety reasons. "57 torsion bars broke often just forward of the rear capture point, the kind of cheap thrill you do not need when driving down the highway. Stock brakes for normal driving are adequate if properly maintained. Nice find as this car looks rust free, a rarity for '57 Mopars. Dual MC is always a good upgrade for safety reasons.
Dave