said, that guide is pretty clear that you have to have cfw already installed. There is no way currently to go from 4.3x ofw to cfw currently unless you have a flasher and do not have a 3k or 4k model.
"Snake. We're not tools of the government, or anyone else. Fighting was the only thing... the only thing I was good at. But... at least I always fought for what I believed in." - Gray Fox