I have a JD2 bender and I want to buy a die for it. I am just trying to figure out what size I should get. I want to build a cage first then go onto front bumper and doors. Should I got 2", 1 5/8", 1 1/2" or 1 3/4" tube? I heard that 1 3/4" is more then 2" in tube prices. I am thinking 1 1/2" or...