Welcome to BP.net Any questions you may have please feel free to ask!!
If you can pick up an under tank heater with a thermostat. I would also pick up or make two tight fightting hides. Your better off just using your heat emitter if possible. Coles off some of the screen lid with tin foil to help keep the humidity in. Black out 3 sides or your tank with something to help the snake not feel so exposed.