Re: RTABs and rear shock mounts
Reinforcement plates are chep insurance - be sure to install correctly!! The beveled edge faces down against the existing sheet metal.
Use latest E4 6M3/E86 Z4M bushings p/n 33 32 6 770 817. This probably is the bushing Rogue sells. By all means install the shims - cheap insurance again. This should be the last time the bushings will need to be replaced.