I have some nice PMT fabrication arms about to put up for sale.. <100 miles.. $200 shipped. They are johnny joint one end and bushing on the other end.
I have a set of H&R #0201 - Lower rear control arms, 78-87 GM G-body +1/4" CUSTOM LENGTH (adds 1.5 degrees pinion) with greasable polyurethane bushings and provisions for stock sway bar $150
(These sell for $249 when new...) Let me know if interested.