Interesting how various posters have recommended lower gears, hotel sleeping etc etc to such a seasoned tourer.
How much time do you have? There are Ti seatposts available other than Bromfication, see ebay under Rockbros brand. You could order a plain Ti tube from titanproduct.com. Shim it up and put your carbon 27.2mm post inside. Clamp, done. Ti Handlebars too.