I never had a problem frying a turkey in the past 6 years, Definitely pre-measure your oil, and definitely turn the burner off when lowering the turkey into the oil, or removing it from the oil. Then re-light the burner once settled. If you're afraid of being close to the pot, or it tipping over or falling off when re-lighting, then you should be worried about your set up in general. My pot and burner are very heavy sturdy and don't move if bumped. I don't go all out with the ladder and pulley, since to me that seems way more clumsy then me using my hands and a sturdy hook.
Have fun and be safe. If you're questioning if such and such is a good idea, it's probably not.