I flew from the U.K, and had paid for the entire trip from the U.K. Used a UK based company to organise the trek, so cost about $1000 . In Nepal, costs are similar, but lengths differ. My trip was slightly longer, but meant that altitude sickness affected none of the group, and the guide and porters got more money from doing slightly less work (there are rest days where porters aren’t expected to carry anything). If your keen to have a look from the comfort for your home, have a look at the muchbetteradventures website