Possible to flash xt1527 to non att firmware?

Hey y’all I just picked up an att go phone moto e without researching it too much and I already bricked it trying sunshine. To unbrick it, I just flashed the att system image with fastboot and it made me wonder whether I can flash any motorola firmware, use kingroot, and then try sunshine again. Does anyone know if this can brick the phone permanently or is it probably safe to try it?