I was able to buy the bushings themselves from Apple Hydraulics. However discovered my torch was not sufficient to unbraze the bushings. After looking at how tough it is to align those bushings to a fulcrum pins spans across both sides and can screw from one side to another I ended up sending to Apple Hydraulics for them to R&R and fit new bushings. 5 days later A Arms came back blasted, painted, straightened, and new metal bushings in place. Last I checked it was around $200 when I had done last year. NFI but I've got a set of A-Arms going to them next week for rebushing.
If you buy new, Moss sells 2 grades. The British Heritage A-Arm is a much heavier duty part like RB A-Arms which are much heavier in construction. $90 each more than the cheap ones.