You do t have to be "qualified", not being qualified can be a good thing. For example a medical review board, it's good to have normal people because they are a check and balance and don't let bad doctors off easily where doctors are bias and will.
Not true, keep extra batteries and put a solar panel on your rig (vehicle or trailer) to charge the dead ones while you work. Maybe keep a battery generator for cloudy days.
There are 3rd party APIs that handle scraping.... Eg Red circle API. Problem is they don't really have produce and everything up to date.