I can't help but caution you on this, because of the fact that you're doing history the wrong way. What it sounds like here is that you have invented a theory and now want to find the sources to shoehorn into that theory. That is kind of like when students say "I've written my essay. All I need to do now is find sources to put in it." A real historian does not try and manipulate sources into saying what he or she wants them to say. I should be able to say to you: "Okay, so you have a theory about Hitler and economics. On what do you base this theory?" If you can't answer that, then...it's not much of a theory, is it?

Once we get past that problem, I'm not actually sure what you're suggesting. Are you saying that it is commonly accepted that Hitler rose to and maintained power because the Nazis were good economic managers, but your theory is that they weren't actually (but were good at spinning it to sound like they were)? If this is the case...well, most historians don't believe that the Nazis were good economic managers. A little while back I wrote a comment on just this topic, and there are sources listed there for you to check out.