Update: I tried installing the google apps package from here: wccftech.com/download-latest-google-apps-android-1/ Now when I boot the phone I get a loop of "Unfortunately, SetupWizard has stopped." I can just recover from the HTC 816 4.4.2 SENSE5.5 ROOT to fix this ,right?
Update #2: Success! I wiped the cache, still got "Unfortunately, SetupWizard has stopped," wiped the dalvik cache, same error, then wiped user dater and cache and the phone not only works but had google play installed on it! And Hangouts too automatically opened. Now I can get all of my real apps.