Choosing a rear suspension

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.
Wow those price have shot up. Last I looked the control freak was around 1200. I was thinking a grand for the SS springs and shocks set up