Suspension, sway bars, wheel&tire upgrades, help!!!

First I would replace the shocks if they are worn with bilsteins, if not worn I would leave them until they are needed

second I would ditch the 318 torsion bars, get .920 or larger bars
third would be the sway bars

If you are familiar with cudas you should already be familiar with the front suspension of an A-body since they are identical in layout the difference are only in the size of the components.