As to the claim of Schacht's disapproving of fiat money, google mefo bill.
Then there is the fairy tale in that article that the nazis stimulated the economy by all that construction work. In reality they had opposed all plans to do that, with the result that there were only few programmes. The nazis didn't stop projects already started when they came to power, and still get the credit for the Autobahn (first bit opened in 1932) and the construction of homes. These projects were replaced by armament and fortification asap, though.