Who makes a good A-Body spindle?

[SleeperLark]

I'm just getting back into modifying the suspension on my GM A-Body. Back in the day there was no name for what we were doing and you had to use the spindles off of a B-Body or a 73-77 A body to get camber gain. So far, I see that Detroit Speed & ridetech offer tall / drop spindles. I don't know if the DSE spindles are compatible w/ stock A-arms or even available separately. My car is completely original (currently) and I'm looking to upgrade it to disc brakes and correct the suspension geometry without going overboard.



I know I will need;
Spindles
Springs
Shocks
Swaybars
Bushings
and possibly Rear Link Arms

I'm not looking for the cheap way out, just don't want to spend more that necessary. Like do I need tubular lower A-arms? The complete kits offered by some of the Mfg offer optimum performance / guaranteed compatibility, but the cost is pretty steep.