Hi and welcome to the forum from Southampton UK.

Another hose to consider is Pipers hose from the College of Piping, made by Gaelic themes. I have a couple of pairs of these hose and they are exremely long as they are made to turn over 3 times at the tops to more resemble the traditional hose tops.
I too am 6 ft 3 and have 17 inch calfs and these fit me with loads of length to spare. they are very reasonably priced too and very comfortable.