Pfadt and BMR make some good alternatives. Also look into Prothane.
For the rear cradle bushings, I would highly suggest going with a solid Pfadt or ADM performance SOLID bushings.
2/7/2014: 419 rwhp, 419 torq
Ext: ZL1 front w/mailslot, painted stripes, powdercoated SS rims, and Gary's customs bowties, painted emblems and taillight bezels
Suspension: Pedders subframe bushing inserts, Prothane radius arm inserts, steering rack bushings, Pfadt Sport sways & endlinks coming soon: Pfadt UCA Bushings, ZL1 tie rods
Powertrain: RMCR tune, CAI intake, Kooks headers, high-flow cats & exhaust, VMAX TB, LSR Tri-Ax shifter, Clutch reservoir
Wanted: 3.91 gears & posi-mod, Coilovers, NightOwl Halo kit, trailing arms, full/solid subframe busings