What adjustable rockers to buy at a reasonable cost?

I dont have any experience with them. But that said, the way I look at it, there are
32 bearing assemblies.......
Your first sentence says it all. These do not have any bearings, They are bushed.

Those pro comps may have the self aligning on either side of the roller. If they do,
they are bad about unkeying the valves. That's not a good thing.
These rockers are not "self aligning". They come supplied with good quality shim packs.

I was looking for someone who had actual experience with these parts and it looks
like I still am.