From here on, life is all good. Food and local transport are dirt cheap in Nepal, just as they are in Peru. Just add another ten days to the trekking time in Nepal. Instead of flying into Lukla or Jomson, you can take the bus as far as it will go. Then, just start haggling about the best price to rent local porters at the nearest village.
Yaks are more expensive.
They can carry more gear, yet are more troublesome. The price of a yak is about as much as that of two porters. In addition, the local porters will act as your guides and often double up as excellent cooks. On our trip, we scouted out the Annapurna region very well, however did all our skiing in the Khumbu National Park.