Stainless Rad overflow?

[muddpile]

I remember reading on here once about those tall skinny stainless steel rad overflow cans you can buy on ebay, and was just wondering where everyone mounted them and what size I should buy? My truck has an old antifreeze jug right now with a hose duct taped to a hole in the lid. Not a really great setup or that attractive. I figure while I'm doing my resto I might as well do it right and get as much nice looking aftermarket stuff as possible. They range in size from 2"x13" to 3"x16".