alternative is to buy a manfrotto prosumer tripod, these are pretty light, 1-1.5kg, max loads vary, but very value for money for the quality delivered.
my 785b has been with me to many places for a year plus, including being submerged all the way to the top section more than thrice.. but it's still surviving, although it did puke out quite a bit of water after these submersions. to be fair, for the price i paid, i expected it to give up the ghost by now, but it hasn't.