Here you can download Reaver and Inflator to install in your own Beini, XiaopanOS or Tiny Core system. You should place these files in the /tce or sometimes /cde folders. Which ever one it is it will have a bunch of .tcz / .tce files.
I suggest you use UltraISO to edit your existing ISO and drag the files in the appropriate folder, then save as a new ISO and keep the original ISO as a backup if something goes wrong. Note that Beini 1.2.5 and XiaopanOS already has the latest Reaver and Inflator installed. To get Inflator to work you must have Reaver installed first.