Update:
Sort of answered my own question after fooling around a little more with the git source and running it in a console ( /.tvheadend -d ). Once that was up and running it created some directories in my own user home directory. Inside of the /home/username/.hts/tvheadend directory I found everything I needed. I did need to rename the folder 'iptvtransport' to 'iptvservices' and restart tvheadend but after that everything seemed to be working.
I went ahead and ran the command tv_grab_na_dd as my own username instead of the hts user since tvheadend was now running with my username. I'm currently pulling in new epg data and all seems to be well!
It just confirmed that by returning:
"Feb 07 22:13:48 xmltv: /usr/bin/tv_grab_na_dd: Parsing completed. XML contained 400 channels, 57296 events, 18431 new events injected in EPG"
So I think I'm set.
The only other thing I'm trying to figure out now is how to re-encode h264 streams after a PVR recording has completed, I'm getting the DTS errors as of now, but I think that's going to be addressed in the future.
Thanks again for the EXCELLENT program!