FWE and FOOK are no longer compatible in their current forms - there are no compatibility patches for them. Therefore either use FOOK, or use FWE+MMM+WMK. If you just use FOOK you don't need FOIP patches obv. If you use the others, you need all the FOIP patches that apply to them - just look on the FOIP downloads page and get the ones you need. CALIBR comes with FWE, but there's no harm in adding it yourself either. Finally you would do well to move FO3 out of your Program Files folder if that's where Steam is installed, search for info on how to do that if necessary.