Need Cliffs notes on fuel trim and RKAT on the Durametric

[NewArt]

MAF is bang on 15. FRA is at 0.98.
I've done the hard reset but I'm still getting the RKAT close to 4.
I've not done the purge valve yet (waiting for the part) nor the smoke test.
This morning I have codes P0430, P0410, and P1411.
Things are getting worse, not better. Hopefully the leak test will show something.

[NewArt]

Success!
Found a leak in the rubber collar that holds the intake plenum to the manifold. Gear clamp on crooked. Spray test confirmed it. Fixed it and now I get this:

Happy camper!