How to hire trekking Guide and Porter and what should be their salary scale?

There are many people who are guiding in the Himalayan area but you should choose a guide who have government certified license and speaks good English language. You can search in Google freelance guide in Nepal than you can see piles of Web pages than see who have good review than choose him and pay 30 USD a day and 20 USD a day for porter. They will deal with their food, accommodation and salary with this money a day.