I have a set of '85.5 (early offset) aluminum a-arms. I rebuilt these myself with the bronze seat ball joint rebuild kit ($185) and the rubber bushings from the place in Corpus Christi, TX ($120).
I used them for about 10K miles, street driving, but now I am parting out the car.
I'd like $200 for the pair shipped.
I also have ONE upgraded caster block, brand new in the bag. This came with a new car I bought, and I am using the almost new ones from my other car so I don't need this one. $45 shipped.