Good day all First I want to appologise in advance if I do typo mistakes, english is not my first language. Thank you for I all the good information and advises you put in this forum, it`s is very helpfull. I started my fridge smoker project last week and I`m now at the point to cover the door and the door edges surrounds that were in plastic. Q1:I red that galvanic steel is not recommended. Is Aluminium 2024 is ok or I should take no chances at all and only go SS. Q2:Same questions for the patch I have to do to cover the old hole of the light bulb and for then 90 angles I want to add to hold the racks. Q3: I want to use to electric stove top has heat source and smoke generator, do you recommand a minimum of holes and the dia as an air intake? Q4: Minimum or maximum diameter for the exhaust? Tank you in advance.