Nothing hard about bending tubes. Fill with sand and do gradual bends. Bimini
hardware will
work but I would drill out the set screws and the side of thevtube then put in 1/4 inch
stainless steel pop rivets. All of that being said I think you will be disappointed in the amount of sway you get. That sway will also
work the stanchion bases hard creating
leaks. You could maybe X brace it to help but that is going to be ugly. Might get by with some corner braces of SS tubes using 45 degee fittings at the top bends. All that being said I would hang some
panels off the
lifelines using stage
lighting clamps that you have put SS hardware into. These fold down easily for
docking. You will find this easier and cheaper and I think you would be happier. Good luck