Default Regain root from mobile

In an attempt to unroot and return to stock for 4.4 OTA I flashed stock firmware and unrooted my device in the process, so far so good.

I reboot my phone after to initiate the OTA but of course I can't download the OTA because my device status is still custom and without root I can't triangle away or do anything.

I'm still trying to figure out how to get root back onto my phone from my phone since I don't have access to a computer where I'm at. I'm basically just screwed and also stuck on MDL baseband with a MK2 build running 4.3 stock so I'm getting no downloads at all. XDA the app itself too 10min to download

Any insight would be greatly appreciated...I knew I should have just waited until I I had access to a pc but I jumped the gun of course. I've been looking around a lot and the only methods of rooting I've found require or use a pc.

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Addicted to ROMs. My body is always ready