Choosing a rear suspension

Actually by the time you add up the cost of SS springs, shocks and the other upgrades such as extra clamps, shackles etc, it's not much more these days to just jump into a 4 link, granted there's much more work involved.
Oh hell no and no way.
1 example ... GTS Rear Suspension | Gerst Tubular Suspensions

4-Link MOPAR Coil-Over Rear Suspension Systems

Rear Suspension

There is no way SS springs, shocks, shackles and even off set hangers, perch welding is this expensive.