Rear End Cleanup, Help?

Hi, all. I need advice on cleaning up the rear end for painting. I've got the backing plates and coverView attachment 1715281079 soaking in evapo-rust and they are coming out great. Now the best way to do the rest? No heavy rust, just the usual. No blasting equipment, just hand tools, wire wheels, etc. Any suggestion would help. Thanks, Woody.

Just a suggestion, remove that vent attached to the axle tube and run a vent hose up around the crossmemeber area that the shocks mount to like trucks normally have.
This will keep the rear from getting soaked all over the tube like it is now.
Just cut the current tube about an inch up and clamp the hose on it.
Then chisel or grind off that cover from the tube and smooth it down.