Default Rooted N7 wifi updated to 4.4.2 lost root and recovery.

The subject should say it all except this is the 2012 version of nexus7. I already have a flashable zip of cwm touch in /sdcard/ but its not being picked up possibly because recovery has gone bad.

I am trying to reinstall recovery ideally cwm without using a PC. Can anyone help?
Hardware: Nexus 7 (rooted with WugFresh's Nexus Root Toolkit)
Running: Kitkat (v4.4.2) + CWM Touch