We requested information from several trekking companies; only Hari from Welcome Nepal Treks was able to offer the service we wanted (a single porter-guide for a 13 day Lukla-Kala Pattar trek) at a reasonable price. WNT was also the only company to offer staff from the area around Lukla which is superior for several reasons: an actual local who has contacts in the area, knows the land intimately, isn't susceptible to AMS like a guide from Kathmandu, and better still for the budget traveler, you don't have to pay to fly them out. Plus, Home Raj is the man, and knew just how to pace us (and push us!) while we were trekking. Hari also facilitated two smooth round trips to the airport. Professional, dependable, and an overall fantastic experience.