We approached Lumle for organizing an overland trip to Muktinath from Kathmandu and back. Operations Manager Nipendra Maharjan was the one who helped us plan our trip. He accompanied us all through the trip. We engaged a Mahindra Scorpio for our trip. Excellent and caring service has been Nipendra's hallmark. Along with the driver Sarath, both were outstanding. Ineffable to mention about their excellent conduct and service.
I would strongly recommend Lumle if you are planning a trip to Muktinath by an overland tour. Nipendra is a great ambassador for Lumle.
Would recommend hiring an alternate vehicle other than Scorpio if you are looking at having more leg room and comfort.