Priiloader won't open? Sounds like you now have neither priiloader or bootmii boot2. Are you able to turn the console on using your wiimote? If yes, bluebomb may work to get you into a homebrew environment to make some repairs. Alternatively you could TRY using the savemiifrii method (Google it) to autoboot a disc that has an exploit like super smash bros and smash stack, or use the bluebomb exploit with any game you are able to launch.
Honestly though, the chances don't look good in my opinion.