*update*
Huzah! All is good now, I was able to restore from a backup of 4.4.2 using philz cwm recovery tool, afterwards I used sunshine to get s-off. It cost $25, but it was well worth it. I now have a converted HTC One GPE with ota updates.
Anyone looking to loading Roms or doing a conversion, I highly recommend sunshine, all you do is run it in your phone and it takes care of the rest. You can get it here:
http://theroot.ninja
Thanks a lot for your help, if anything it lead me on the right path to finally fixing it.
Did you flash any roms to your M8? Also, is it fairly easy to return to stock if needed?
I almost walked out with a M8 from the AT&T store but wanted to research first and find out if its difficult to return to stock in case I didn't like the phone.