For this Trip you need to be physically fitness and mentally well prepare.  Some days you need to walk 8 to 9 hours, which is more than average walking in a day. It could do just Camping organize trip last three years ago but there is basic Teahouse entire trip now a days.  Mostly, you will stay in Lodge and have food same place (Dhal Bhat=main Nepali food, Fried rice, Bread, Boiled and fried eggs, Potato, Noodles, porridge, tea coffee...